CN110445490A - The logical device of magnetic Skyrmion is driven based on spin wave - Google Patents
The logical device of magnetic Skyrmion is driven based on spin wave Download PDFInfo
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- CN110445490A CN110445490A CN201910739691.XA CN201910739691A CN110445490A CN 110445490 A CN110445490 A CN 110445490A CN 201910739691 A CN201910739691 A CN 201910739691A CN 110445490 A CN110445490 A CN 110445490A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The present invention relates to a kind of logical device for driving magnetic Skyrmion based on spin wave, the logical device is and door, comprising: spin wave excitation source, for generating spin wave, and two excitaton sources including the first, second input end；Magnetic Nano track, it is made of magnetic material layer and strong spin(-)orbit material layer, including five tracks, one end of the first track is connect with one end of one end of the second track and third track respectively, and the other end is connect with one end of one end of the 4th track and the 5th track respectively；One end of second track and third track is connect with the first track respectively, and the other end is respectively the first output end and first input end；One end of 4th track and the 5th track is connect with the first track other end respectively, respectively the second input terminal and second output terminal.The characteristics of logical device of the present invention drives magnetic Skyrmion to realize by spin wave, has low temperature concurrently, high stability, high service life.
Description
Technical field
The present invention relates to logical device technical fields, drive magnetic Skyrmion based on spin wave more particularly to a kind of
Logical device.
Background technique
Relative to microelectronic logic devices, it is excellent that magnetic Skyrmion device has that size is small, stability is high, speed is fast etc.
Point.And driving the main means of magnetic Skyrmion at present is electric current driving, can generate a large amount of Joule heats in device element, is influenced
The service life of magnetic Skyrmion stability and device.
Summary of the invention
Based on this, it is necessary to provide a kind of logical device for driving magnetic Skyrmion based on spin wave.
A kind of logical device driving magnetic Skyrmion based on spin wave, the logical device are and door, comprising:
Spin wave excitation source is placed in first input end for generating spin wave, including the first excitaton source；Second excitaton source,
It is placed in the second input terminal；
Magnetic Nano track is made of the magnetic material layer and strong spin(-)orbit material layer of the connection that contacts with each other, including the
One track, the second track, third track, the 4th track, the 5th track, wherein
First track, one end are connect with one end of one end of the second track and third track respectively, and the other end is respectively with
One end of four tracks is connected with one end of the 5th track；
Second track, one end are connect with first track, and the other end is the first output end；
Third track, one end are connect with first track, and the other end is first input end；
4th track, one end are connect with first track, and the other end is the second input terminal；
5th track, one end are connect with first track, and the other end is second output terminal.
Magnetic material layer is ferrimagnet in one of the embodiments, and strong spin(-)orbit material layer is heavy metal material
Material.
Spin wave excitation source is the rectangular magnetic field pulse that microwave antenna applies in one of the embodiments,.
Spin wave excitation source is the oersted field that alternating current generates in one of the embodiments,.
In one of the embodiments, between first track and second track, first track and described
Between third track, between first track and the 4th track, between first track and the 5th track
Angular range is [90 °, 120 °].
The interior angle 45° angle in pairs of 90 ° of corners between the track in one of the embodiments,.
The spin wave excitation source may also be placed on the path of magnetic Nano track in one of the embodiments, hold
It is continuous to drive magnetic Skyrmion movement.
Meanwhile the disclosure additionally provides a kind of logical device that magnetic Skyrmion is driven based on spin wave, described patrols
Volume device is or door, comprising:
Spin wave excitation source is placed in first input end for generating spin wave, including the first excitaton source；Second excitaton source,
It is placed in the second input terminal；
Magnetic Nano track is made of the magnetic material layer and strong spin(-)orbit material layer of the connection that contacts with each other, including the
One track, the second track, third track, wherein
First track, one end are connect with one end of one end of the second track and third track respectively, and the other end is output end；
Second track, one end are connected with first track, and the other end is first input end；
Third track, one end are connected with first track, and the other end is the second input terminal.
It is above-mentioned that magnetic Skyrmion is driven based on spin wave with door and/or door, magnetic Si Geming is driven by spin wave
The characteristics of son movement has low temperature concurrently to realize the logical action with door and/or door, high stability, high service life.
Detailed description of the invention
Fig. 1 is the waveform diagram of the rectangular magnetic field pulse as spin wave excitation source；
The motion conditions figure of Fig. 2 is spin wave excitation source when being rectangular magnetic field pulse magnetism Skyrmion；
Fig. 3 is movement velocity variation diagram of the magnetic Skyrmion of spin wave driving under different length track；
Fig. 4 a is movement feelings of the magnetic Skyrmion of spin wave driving on the L-type magnetic Nano track that corner is right angle
Condition figure；
Fig. 4 b is fortune of the magnetic Skyrmion of spin wave driving on the L-type magnetic Nano track that corner is double 45° angles
Dynamic situation map；
Fig. 4 c is the magnetic Skyrmion of spin wave driving on the inverted L shape magnetic Nano track that corner is double 45° angles
Motion conditions figure；
Fig. 5 a is the motion conditions figure that the magnetic Skyrmion of spin wave driving is originated by T-type magnetic Nano rail base；
Fig. 5 b is the motion conditions figure that the magnetic Skyrmion of spin wave driving is originated by T-type magnetic Nano track left arm；
Fig. 5 c is the motion conditions figure that the magnetic Skyrmion of spin wave driving is originated by T-type magnetic Nano track right arm；
Fig. 5 d is motion conditions figure of the magnetic Skyrmion of spin wave driving on Y type magnetic Nano track；
Fig. 6 is the structural schematic diagram with door that magnetic Skyrmion is driven based on spin wave；
Fig. 7 be spin wave excitation source be alternating current generate oersted field when magnetism Skyrmion motion conditions figure；
Fig. 8 is that magnetic Skyrmion or door structural schematic diagram is driven based on spin wave.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the better embodiment of the application.But the application can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more disclosure of this application
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.
Spin wave is the non-uniform precession of the magnetic moment in magnetic material, thus spin wave can use it is mutual between magnetic moment
Effect also includes magnetic Skyrmion such as neticdomain wall, vortex to drive existing magnetic structure in magnetic material.This magnetic lattice
Pine torch is a kind of chiral spin structure with turbulent structure.This magnetism Skyrmion, which can be stable in the presence of, has strong spin
In the nano thin-film that the block magnet of orbit coupling effect is either coupled with heavy metal.The dynamics of magnetic moment can pass through Landau-
Li Fuxizi-gilbert's equation describes,
Wherein t is time, m=M/MSIt is reduction magnetic moment, MSIt is the saturation magnetic moment of magnetic material.γ0It is magnetic rotaion comparison.α
It is damped coefficient.What is indicated is the effective field in system, and wherein what E was indicated is the total energy density in system.
Gross energy includes exchange energy, magnetocrystalline anisotropy energy, and demagnetization energy and Dzyaloshinskii-Moriya (DM) act on energy.
Driving the logical device of magnetic Skyrmion based on spin wave involved in the disclosure includes magnetic Nano track,
Magnetic Nano track is made of the magnetic material layer and strong spin(-)orbit material layer of the connection that contacts with each other, wherein magnetic material layer
Using having magnetic material, for generating magnetic Skyrmion and being moved for magnetic Skyrmion, in one embodiment,
Magnetic material layer is the nano thin-film being made of ferrimagnet, it is possible to understand that, in other embodiments, magnetosphere can also be with
It is Fe, Co, the magnetic materials such as Ni element and its alloy composition.Strong spin(-)orbit material layer for generate maintain and generate it is magnetic this
DM necessary to lattice pine torch interacts (Dzyaloshinskii-Moriya interactions), in one embodiment,
It is heavy metal material composition.
The disclosure simulates magnetic Skyrmion under spin wave driving along magnetic Nano by numerical simulation method
The case where track moves, the magnetic parameter used is as follows: saturation magnetization MS=580kA/m, exchange constant A=15pJ/m,
Crystal anisotropy constant K=0.8MJ/m3, DM Interaction constant D=4mJ/m2, track size 800nm × 400nm × 1nm.
Spin wave, applied field strengths 600mT, frequency 25GHz are excited using externally-applied magnetic field.
Referring to Fig. 1, Fig. 2, by applying rectangular magnetic field pulse as shown in Figure 1, in the specific region of magnetic Nano track
Excite the spin wave propagated in +X direction that magnetic Skyrmion is driven to move.Fig. 2 is that spin wave excitation source is rectangular magnetic field arteries and veins
The motion conditions figure of magnetism Skyrmion when rushing, wherein dash area indicates spin wave excitation source, and circle indicates magnetism Si Geming
Son, it can be seen that magnetic Skyrmion is driven by spin wave, mobile to +X direction, moves to after 5ns apart from initial position
The position of right end 266nm moves to the position apart from initial position 457nm after 9ns.As can be seen that pushing away with the time
It moves, magnetic Skyrmion is moving to the right, and movement speed can change.Referring to Fig. 3, the lower magnetism of spin wave driving this
Movement velocity curve graph of the lattice pine torch under different length track, it can be seen that due to the decaying of spin wave, magnetic Skyrmion
When far from spin wave source, speed is substantially reduced.
It should be understood that magnetic Skyrmion can move under the driving of single spin wave due to the decaying of spin wave
Distance be limited, and can be obtained according to the related data of magnetic Skyrmion and spin wave.Therefore, in one embodiment
In, by controlling the intensity and track length in spin wave excitation source, control motion profile and the position of magnetic Skyrmion.
It, can also be in magnetic Nano in order to meet the long distance transmission magnetism Skyrmion on magnetic Nano track the needs of
Multiple spin wave excitation sources are set at different location on track, continues driving for carrying out to magnetic Skyrmion, avoids speed
Decaying.In one embodiment, the multiple spin wave excitation source is set in qually spaced on magnetic Nano track, to continue
Drive magnetic Skyrmion movement.
A referring to fig. 4, Fig. 4 b, Fig. 4 c, motion conditions of the magnetic Skyrmion of spin wave driving on L-type nanometer track,
Wherein each figure indicates magnetic Skyrmion the location of different time points after being driven setting in motion, and wherein arrow shows
The meaning direction of motion, dash area indicate spin wave excitation source, and white circle indicates magnetic Skyrmion, it can be seen from Fig. 4 a
When corner is right angle, magnetic Skyrmion is easy collision right angle and is destroyed.And under similarly spin intensity of wave driving, when
When corner becomes double 45 ° of corners from 90 ° of right angles, magnetic Skyrmion is passed through.In addition, Fig. 4 b and Fig. 4 c's the result shows that,
For the L-type track of different directions, magnetic Skyrmion can move always along track.
Referring to Fig. 5 a Fig. 5 b Fig. 5 c Fig. 5 d, fortune of the magnetic Skyrmion of spin wave driving on T-type and Y type nanometer track
Emotionally condition, wherein each figure indicates magnetic Skyrmion the location of different time points after being driven setting in motion,
Middle arrow illustrates the direction of motion, and dash area indicates spin wave excitation source, and white circle indicates magnetic Skyrmion, comparison diagram
5a, Fig. 5 b and Fig. 5 c can be seen that the magnetic Skyrmion of spin wave driving in the magnetic Nano track in face of there is multiple directions
When, the trend of movement is to be greater than straight trip to the left to be greater than to the right.Referring to Fig. 5 d, for on-right angle angle such as hexagonal angle when, it is magnetic
Skyrmion can still be moved along track.
Fig. 6 is the structural schematic diagram with door for driving magnetic Skyrmion in an embodiment based on spin wave.
One end of first track 110 is connect with one end of one end of the second track 120 and third track 130 respectively.Second
One end that track 120 is not connect with the first track 110 is as the first output end 121；Third track 130 not with the first track 110
One end of connection as first input end 131, meanwhile, the port of first input end 131 is provided with spin wave excitation source 132,
Magnetic Skyrmion can enter from first input end 131, the driving of the spin wave issued by spin wave excitation source 132 and
It is moved in magnetic Nano track.Wherein, the spin wave excitation source 132 is that applied field strengths as shown in Figure 1 are
600mT, frequency are the rectangular magnetic field pulse of 25GHz.
The other end of first track 110 is connect with one end of one end of the 4th track 140 and the 5th track 150 respectively.The
One end that five tracks 150 are not connect with the first track 110 is as second output terminal 151；4th track 140 not with the first track
110 connection one end as the second input terminal 141, meanwhile, the port of the second input terminal 141 is provided with spin wave excitation source
142, magnetic Skyrmion can enter from the second input terminal 141, the drive of the spin wave issued by spin wave excitation source 142
It moves and is moved in magnetic Nano track.Wherein, the spin wave excitation source 142 is that applied field strengths as shown in Figure 1 are
600mT, frequency are the rectangular magnetic field pulse of 25GHz.
As shown in fig. 6, in the present embodiment, the first track 110 and the second track 120, third track 130, the 4th track
140, the angle between the 5th track 150 is all 90 °, and entire magnetic Nano track is in " I " fonts, in one embodiment, on
Stating all angles can be in range [90 °, 120 °] interior value.
It is as follows with the working principle of door based on magnetic Skyrmion:
Assuming that there is a magnetic Skyrmion at first input end 131, then it represents that be logical one, be expressed as if not
Logical zero；There is a magnetic Skyrmion at second input terminal 141, then it represents that be logical one, logic is expressed as if not
"0"；Second output terminal 151 is expressed as logical one if the Skyrmion that is magnetic, if not being expressed as logical zero.Based on certainly
Rotation wave drives the logical operation with door of magnetic Skyrmion to have following several situations:
1+0=0, first input end 131 has a magnetic Skyrmion, and the second input terminal 141 is without magnetism Si Geming
Son, then under the driving for the spin wave that spin wave excitation source 132 is issued, magnetic Skyrmion setting in motion, and due to spin
The decaying of wave and taper off movement, second output terminal 151 can not be reached, finally in second output terminal 151 without this magnetic lattice
Pine torch, i.e. 1+0=0；
0+1=0, first input end 131 is without magnetic Skyrmion, and the second input terminal 141 has a magnetism Si Geming
Son, then under the driving for the spin wave that spin wave excitation source 142 is issued, magnetic Skyrmion setting in motion, and due to spin
The lower magnetic Skyrmion of wave driving on magnetic Nano track be greater than straight trip to the left greater than movement tendency to the right and to the left
It is redirected into the first track 110, does not finally obtain magnetic Skyrmion, i.e. 0+1=0 in second output terminal 151；
1+1=1, first input end 131 have a magnetic Skyrmion, might as well be referred to as magnetic Skyrmion A, second is defeated
Entering end 141 also has a magnetic Skyrmion, might as well be referred to as magnetic Skyrmion B, then the two Skyrmions are respectively certainly
Setting in motion under the driving of spin wave that rotation wave excitaton source 132,142 is issued, simultaneously because the lower magnetism of spin wave driving this
Lattice pine torch is greater than straight trip greater than movement tendency to the right on magnetic Nano track to the left, and magnetic Skyrmion A is being moved to
When the fork of the second track and the first track, the first track, magnetic Si Geming are moved into the opposing left of its direction of motion
Sub- B is moved into the first track when moving to the fork of third track and the first track, to the opposing left of its direction of motion,
Two magnetic Skyrmions move toward one another in the first track at this time, and collide, and collide latter two magnetic Skyrmion point
Do not keep past contrary with its initial motion direction movement of original kinetic energy, magnetic Skyrmion A to the first track and second,
Third track connects extreme direction movement, and magnetic Skyrmion B connect extreme direction with the four, the 5th tracks to the first track and moves simultaneously
The 5th track is moved into direction of relative movement left side again and eventually arrives at second output terminal 151, finally in the second output
End 151 obtains a magnetic Skyrmion, i.e. 1+1=1；
0+0=0, first input end 131 and the second input terminal 141 without magnetic Skyrmion, then entirely with do not have in door
Be magnetic Skyrmion, does not finally obtain magnetic Skyrmion, i.e. 0+0=0 in second output terminal 151.
In one embodiment, spin wave excitation source can also be the oersted field that alternating current generates, referring to Fig. 7, certainly
The motion conditions figure of magnetism Skyrmion, in the present embodiment, difficult to understand when revolving the oersted field that wave excitaton source is alternating current generation
This special field is generated by 6.87mA, the alternating current of 50GHz.As can be seen that the oersted place that alternating current generates can also swash
It sends out spin wave and drives magnetic Skyrmion movement.
Fig. 8 is the structural schematic diagram for driving magnetic Skyrmion or door in an embodiment based on spin wave.
One end of first track 210 is connect with one end of one end of the second track 220 and third track 230 respectively, another
End is output end.One end that second track 220 is not connect with the first track 210 is first input end 221, meanwhile, it is defeated first
The port for entering end 221 is provided with spin wave excitation source 222, and magnetic Skyrmion can enter from first input end 221, by certainly
It revolves the driving for the spin wave that wave excitaton source 222 is issued and is moved in magnetic Nano track.Wherein, the spin wave excitation source
222 for applied field strengths as shown in Figure 1 be 600mT, and frequency is the rectangular magnetic field pulse of 25GHz.Third track 230 not with
One end of first track 210 connection is the second input terminal 231, meanwhile, the port of the second input terminal 231 is provided with spin wave and swashs
Rise 232, magnetic Skyrmion can enter from the second input terminal 231, the spin wave issued by spin wave excitation source 232
Driving and moved in magnetic Nano track.Wherein, the spin wave excitation source 232 is that externally-applied magnetic field as shown in Figure 1 is strong
Degree is 600mT, and frequency is the rectangular magnetic field pulse of 25GHz.
As shown in figure 8, in the present embodiment, the angle and the second track 220 of the first track 210 and the second track 220 with
The angle of third track 230 is all 90 °, and entire magnetic Nano track is T-shaped, in one embodiment, can be in range
[90 °, 120 °] interior value.
It is as follows with the working principle of door based on magnetic Skyrmion:
Assuming that there is a magnetic Skyrmion at first input end 221, then it represents that be logical one, be expressed as if not
Logical zero；There is a magnetic Skyrmion at second input terminal 231, then it represents that be logical one, logic is expressed as if not
"0"；Output end 211 is expressed as logical one if the Skyrmion that is magnetic, if not being expressed as logical zero.Based on spin wave
Magnetic Skyrmion or door logical operation is driven to have following several situations:
1+0=1, first input end 221 has a magnetic Skyrmion, and the second input terminal 231 is without magnetism Si Geming
Son, then under the driving for the spin wave that spin wave excitation source 222 is issued, magnetic Skyrmion setting in motion, due to spin wave
Magnetic Skyrmion under driving is greater than straight trip greater than movement tendency to the right, this magnetic lattice on magnetic Nano track to the left
Pine torch is moved when moving to the fork of the second track and the first track to the opposing left of its direction of motion, into the first rail
Road finally obtains magnetic Skyrmion, i.e. 1+0=1 in output end 211；
0+1=1, first input end 221 is without magnetic Skyrmion, and the second input terminal 231 has a magnetism Si Geming
Son, then under the driving for the spin wave that spin wave excitation source 232 is issued, magnetic Skyrmion setting in motion, due to spin wave
Magnetic Skyrmion under driving is greater than straight trip greater than movement tendency to the right, this magnetic lattice on magnetic Nano track to the left
Pine torch moves, into the second rail when moving to the fork of the second track and third track to the opposing left of its direction of motion
Road, then due to the driving of spin wave caused by the spin wave excitation source 222 of the second track and gradually slow down, stop, and by
Above-mentioned spin wave drives to inceptive direction opposite direction and moves i.e. movement to 210 junction of the second track 220 and the first track
Direction, and again due to the reason of movement tendency moves downward into the first track, finally this magnetic lattice are obtained in output end 211
Pine torch, i.e. 0+1=1；
1+1=1, first input end 221 have a magnetic Skyrmion, and the second input terminal 231 also has magnetism this lattice
Pine torch, then two magnetic Skyrmions start to transport under the excitation in spin wave excitation source 222 and spin wave excitation source 232 respectively
Dynamic, respective motion conditions finally obtain magnetic Skyrmion, i.e. 1+1=1 in output end 211 as shown in both the above situation；
0+0=0, first input end 221 and the second input terminal 231 without magnetic Skyrmion, then do not have in entire or door
Be magnetic Skyrmion, does not finally obtain magnetic Skyrmion, i.e. 0+0=0 in output end 211.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of logical device for driving magnetic Skyrmion based on spin wave, which is characterized in that the logical device be with
Door, comprising:
Spin wave excitation source is placed in first input end for generating spin wave, including the first excitaton source；Second excitaton source, is placed in
Second input terminal；
Magnetic Nano track is made of the magnetic material layer and strong spin(-)orbit material layer of the connection that contacts with each other, including the first rail
Road, the second track, third track, the 4th track, the 5th track, wherein
One end of first track is connect with one end of one end of the second track and third track respectively, first track
The other end is connect with one end of one end of the 4th track and the 5th track respectively；
The other end of second track is the first output end；
The other end of the third track is first input end；
The other end of 4th track is the second input terminal；
The other end of 5th track is second output terminal.
2. the logical device according to claim 1 for driving magnetic Skyrmion based on spin wave, which is characterized in that described
Magnetic material layer is ferrimagnet.
3. the logical device according to claim 1 for driving magnetic Skyrmion based on spin wave, which is characterized in that described
Strong spin(-)orbit material layer is heavy metal material.
4. the logical device according to claim 1 for driving magnetic Skyrmion based on spin wave, which is characterized in that described
Spin wave excitation source is the rectangular magnetic field pulse that microwave antenna applies.
5. the logical device according to claim 1 for driving magnetic Skyrmion based on spin wave, which is characterized in that described
Spin wave excitation source is the oersted field that alternating current generates.
6. the logical device according to claim 1 for driving magnetic Skyrmion based on spin wave, which is characterized in that described
Between first track and second track, between first track and the third track, first track and described
Angular range between 4th track, between first track and the 5th track is [90 °, 120 °].
7. the logical device according to claim 6 for driving magnetic Skyrmion based on spin wave, which is characterized in that each institute
Stating angle is 90 ° of corners, and 90 ° of corners include the changeover portion of two 45 ° of corners of two 45 ° of corners and connection.
8. the logical device according to claim 1 for driving magnetic Skyrmion based on spin wave, which is characterized in that described
The quantity in spin wave excitation source be it is multiple, and be equally spacedly arranged on the magnetic Nano track, with lasting driving magnetism this
The movement of lattice pine torch.
9. a kind of logical device for driving magnetic Skyrmion based on spin wave, which is characterized in that the logical device be or
Door, comprising:
Spin wave excitation source, for generating spin wave, the spin wave excitation source includes the first excitaton source, is placed in the first input
End；The spin wave excitation source further includes the second excitaton source, is placed in the second input terminal；
Magnetic Nano track is made of the magnetic material layer and strong spin(-)orbit material layer of the connection that contacts with each other, and the magnetism is received
Meter-gage road includes the first track, the second track, third track, wherein
One end of first track is connect with one end of one end of the second track and third track respectively, first track
The other end is output end；
One end of second track is connected with first track, and the other end of second track is first input end；
The other end of the third track is the second input terminal.
10. the logical device according to claim 8 for driving magnetic Skyrmion based on spin wave, which is characterized in that institute
State angular range between the first track and second track, between first track and the third track be [90 °,
120°]。
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| CN112289363A (en) * | 2020-11-23 | 2021-01-29 | 信阳师范学院 | Magnetic skyburn-based racetrack memory |
| CN113010145A (en) * | 2021-03-22 | 2021-06-22 | 香港中文大学（深圳） | Digital operation assembly, digital calculator and electronic equipment |
| US11539365B2 (en) * | 2019-06-27 | 2022-12-27 | Board Of Regents, The University Of Texas System | Reversible computing system and method based on conservative magnetic skyrmion logic |
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