CN106783809B - A kind of coaxial capacitor and preparation method of spinning - Google Patents
A kind of coaxial capacitor and preparation method of spinning Download PDFInfo
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- CN106783809B CN106783809B CN201611034674.9A CN201611034674A CN106783809B CN 106783809 B CN106783809 B CN 106783809B CN 201611034674 A CN201611034674 A CN 201611034674A CN 106783809 B CN106783809 B CN 106783809B
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Abstract
The invention discloses a kind of coaxial spin capacitor and preparation method, preparation method is one layer of magnetic material of deposition on non-magnetic conductor, is inserted into conductive ion colloidal sol；The non-magnetic conductor is the conductive oxides such as tin oxide, the tin indium oxide of the conductive metals such as copper, aluminium and alloy or Fluorin doped；Magnetic material is feeromagnetic metals and its alloys or molecular magnetic materials such as nickel, cobalt, iron；The conductive ion colloidal sol is ion glue made of conductive ion liquid.The electron spin direction stored in spin capacitor prepared by the present invention is consistent, has the function of storing electron spin information.Preparation method operating procedure is simple, at low cost, easy to implement, and safe and environment-friendly.
Description
Technical field
The present invention relates to spin electric device preparation technical field, especially a kind of coaxial cylindrical spin capacitor and preparation
Method.
Background technique
The huge challenge that 21 century faces first is that energy stores, another aspect spin electric device is due to can be to object
The properties such as the magnetism of matter and dielectric are regulated and controled, and have been had in terms of information storage and have been widely applied very much.By the two aspect knots
A new concept-spin capacitor is just produced altogether.It is compared with conventional capacitive, it not only can store charge, more important
Be that can store spin.Currently, metal (Science, 2007,315,349-351) and semiconductor (Science, 2003,
Electric field has been successfully realized in 301,943-945) to regulate and control coercive field.Electric field is to the regulation of Curie temperature also in metal
It is realized in (Nature, 2000,408,944-946) and semiconductor (Nat.Mater, 2011,10,853-856).But it is electric
Research or considerably less to saturation magnetic moment regulation.It has been reported that and has found electric field to full in ferromagnetic semiconductor (Ga, Mn) As
With the feasibility (Nat. Phys, 2010,6,22-25) of magnetic moment regulation, but due to that can only realize at low temperature, it is unfavorable for reality
Border application.In addition same effect also has found in feeromagnetic metal, then prepares this kind of device and needs advanced film preparation
Technology, such as magnetron sputtering, molecule extension etc., this leads to its higher cost, and preparation process is more cumbersome, is not suitable for a large amount of raw
It produces.In addition, the physical principle of spin capacitor is surface magnetoelectric effect, in order to which surface magnetoelectric effect is applied to practice, need to solve
Certainly two large problems.When ferromagnetic material exposes in the electric field, the effect on two surface can cancel out each other, so a problem is
How this cancellation effect is avoided；Second Problem is for surface magnetoelectricity enhancement effect, it is necessary to greatly increase ferromagnetic
The specific surface area of matter.
Summary of the invention
It is an object of the present invention to provide a kind of coaxial spin capacitor and preparation method, the electronics stored in the spin capacitor is certainly
It is consistent to revolve direction, can store electron spin information.And have preparation method operating procedure simple, at low cost, easy to implement, peace
Entirely, the advantages that environmentally friendly.It can be applied in spin electric device, the fields such as information storage and energy stores.
Realizing the specific technical solution of the object of the invention is:
A kind of coaxial spin capacitor, feature is: depositing one layer of magnetic material on non-magnetic conductor surface, forms magnetic material
The coaxial electrode is inserted into conductive ion colloidal sol and forms coaxial spin capacitor to electrode with corresponding by the coaxial electrode of package,
Wherein: the non-magnetic conductor is the tin oxide or tin indium oxide of the conductive metals such as copper, aluminium, silver, gold, platinum and alloy, Fluorin doped
Conductive oxide；The magnetic material is the feeromagnetic metals such as nickel, cobalt, iron, gadolinium and its alloy or single molecular magnets (such as manganese or iron
Multicore) etc. molecular magnetic materials；The conductive ion colloidal sol is ion glue made of conductive ion liquid；It is described to electrode be copper,
The conductive metals such as aluminium, silver, gold, platinum and its corresponding alloy, the tin oxide of Fluorin doped or tin indium oxide conductive oxide.
A kind of preparation method of above-mentioned coaxial spin capacitor, method includes the following steps:
(1) first that non-magnetic conductor is 5~30 minutes ultrasonic in a solvent, then it is immersed in the acid of 0.005~0.05mol/L
1 minute in solution；It is washed with deionized water after taking out；
(2) electroplate liquid for preparing magnetic material adjusts pH value to 1.0~7.0；
(3) after electroplate liquid being heated to 5~70 DEG C, electricity is put into using nonmagnetic metal and carbon-point as anode and cathode
It solves in liquid, electric current is applied to it by the galvanostatic method of electrochemical workstation, obtain the coaxial electrode of magnetic material package；
(4) it will gather inclined styrene-hexafluoropropylene copolymer, and conductive ion liquid and water acetone be gone to be dissolved in together, and be put into vacuum
It is dry in drying box, obtain conductive ion colloidal sol, wherein the mass ratio of three is 1:1~10:1~10；
(5) it by conductive ion colloidal sol prepared by the coaxial electrode inserting step (4) of magnetic material package, is inserted into
Copper, aluminium, silver, gold, platinum and corresponding alloy, the tin oxide of Fluorin doped or tin indium oxide conductive oxide are used as to electrode, are obtained
Coaxial spin capacitor；Wherein:
The solvent is water, ethyl alcohol or acetone；The acid solution is hydrochloric acid solution or sulfuric acid solution；
The non-magnetic conductor is the tin oxide of the conductive metals such as copper, aluminium, silver, gold, platinum and its corresponding alloy, Fluorin doped
Or the conductive oxides such as tin indium oxide；
The magnetic material is feeromagnetic metals and its corresponding alloy or manganese, iron, cobalt such as nickel, cobalt, iron, gadolinium, nickel it is organic
Complex molecule magnet；The size for applying electric current is -1 × 10-4~-1 × 10-3A；Time is 0.1~2s；
The conductive ion liquid is by quaternary ammonium salt cationic, quaternary phosphine salt cation, imidazoles salt cation or pyrroles's salt cation
It is formed with halide anion, tetrafluoroborate anion or hexafluoro-phosphate radical anion；
Described is the tin oxide or oxygen of the conductive metals such as copper, aluminium, silver, gold, platinum and its corresponding alloy, Fluorin doped to electrode
Change indium tin conductive oxide.
A kind of application of coaxial spin capacitor applied in spin electric device, information storage and electricity storage.
Compared with prior art, the invention has the advantages that:
The electron spin direction that coaxial spin capacitor of the invention is stored is consistent, can store electron spin information, institute
Storage electron spin information content can be adjusted by the quantity of coaxial electrode, can be applied to spin electric device, information storage and energy
The fields such as storage, preparation method operating procedure is simple, and raw material is easy to get, at low cost, and energy consumption is few, high-efficient, easy to implement；It is used
Amount of reagent is few, and whole preparation process meets the requirement of Green Chemistry, safe and environment-friendly.
Detailed description of the invention
Fig. 1 is the schematic diagram for the coaxial spin capacitor that the embodiment of the present invention 1 is prepared；
Fig. 2 is the top view of Fig. 1；
Copper/nickel wire transmission electron microscope and atomic force microscope in the spin capacitor that Fig. 3 is prepared for the embodiment of the present invention 1
Image, wherein (a) is copper/nickel wire transmission electron microscope picture；It (b) is scanning transmission microscope figure and corresponding energy spectrum diagram；(c) it is
Copper/nickel wire atomic force microscopy diagram；It (d) is selective electron diffraction pattern；(e) (f) is that the transmission of copper/nickel wire high-resolution is micro-
Mirror image；(g) (h) respectively illustrates the interplanar distance of nickel and copper；
Fig. 4 is the variation schematic diagram for the spin capacitor pressurization front and back saturation magnetic moment that the embodiment of the present invention 1 is prepared；
Fig. 5 is the increment for the spin capacitor pressurization front and back saturation magnetic moment that the embodiment of the present invention 1 is prepared with insertion copper/nickel
The curve graph of silk radical variation；
Fig. 6 is the variation schematic diagram for the spin capacitor pressurization front and back saturation magnetic moment that the embodiment of the present invention 2 is prepared.
Specific embodiment
Combined with specific embodiments below and attached drawing, invention is further described in detail.Implement process of the invention, item
Part, reagent, experimental method etc. are among the general principles and common general knowledge in the art in addition to what is specifically mentioned below, this
There are no special restrictions to content for invention.The present invention is further elaborated by the following examples, and its purpose is to more thorough
Understand that the contents of the present invention, all cited case are not intended as limiting the scope of the invention.
Embodiment 1
The preparation of coaxial cylindrical spin capacitor based on Cu/Ni
The present embodiment is using copper as non-magnetic conductor, and nickel is as magnetic material, the specific steps are as follows:
(1) first that copper wire is 15 minutes ultrasonic in acetone, it is then immersed in the hydrochloric acid solution of 0.01mol/L 1 minute.It takes
It is washed with deionized water after out；
(2) by the nickel sulfate hexahydrate of 550g/L, the six water nickel chlorides of 75g/L, the boric acid of 40g/L and the dodecane of 60mg/L
Then the pH of solution is transferred to 4 as electroplate liquid by base sodium sulphate wiring solution-forming soluble in water；
(3) it after electroplate liquid being heated to 55 DEG C, is put into electrolyte, leads to using copper wire and carbon-point as anode and cathode
The galvanostatic method for crossing electrochemical workstation applies -5 × 10 to it-4The electric current of A 0.5 second, obtains the copper wire of nickel plating, carries out to it
The test of transmission electron microscope and atomic force microscope, as a result as shown in Figure 3, it was demonstrated that the growth of nickel is extension and crystallinity is fine；
(4) it will gather inclined styrene-hexafluoropropylene copolymer, and ionic liquid and water acetone be gone to be dissolved in together, be uniformly mixed；Three
Mass ratio=1:4:7；Then it by the solution injected plastic pipe mixed, is put into 70 DEG C of vacuum oven 24 hours, obtains
To conductive ion colloidal sol；
(5) in conductive ion colloidal sol made of the nickel plating copper wire inserting step (4) for obtaining step (3), radical is adjustable；
(6) insertion platinum obtains the coaxial cylindrical spin capacitor based on Cu/Ni to electrode, and schematic diagram is as shown in Figure 1, Figure 2.
The magnetism for the spin capacitor pressurization front and back that the present embodiment is prepared is measured, as a result such as Fig. 4, saturation magnetic moment
Increment be up to 20%, it was demonstrated that the excellent in performance of device.Fig. 5 be saturation magnetic moment increment with the variation of insertion copper/nickel wire radical and
The rule of variation, the results showed that the increment of saturation magnetic moment can also be further increased by increasing copper/nickel wire radical.
Embodiment 2
The preparation of coaxial cylindrical spin capacitor based on Cu/FePt
The present embodiment is using copper as non-magnetic conductor, and ferroplatinum is as magnetic material, the specific steps are as follows:
(1) first that copper wire is 15 minutes ultrasonic in acetone, it is then immersed in the hydrochloric acid solution of 0.01mol/L 1 minute.
It is washed with deionized water after taking out；
(2) by the iron chloride of 40g/L, the ammonium chloroplatinate of 12g/L, the potassium chloride of 15g/L and the dodecyl sulphur of 100mg/L
Then the pH of solution is transferred to 4 as electroplate liquid by sour sodium wiring solution-forming soluble in water；
(3) it after electroplate liquid being heated to 58 DEG C, is put into electrolyte, leads to using copper wire and carbon-point as anode and cathode
The galvanostatic method for crossing electrochemical workstation applies -5 × 10 to it-4The electric current of A 0.5 second obtains plating the copper after ferroplatinum
Silk；
(4) it will gather inclined styrene-hexafluoropropylene copolymer, and ionic liquid and water acetone be gone to be dissolved in together, be uniformly mixed；Three
Mass ratio=1:4:7；Then it by the solution injected plastic pipe mixed, is put into 70 DEG C of vacuum oven 24 hours, obtains
To conductive ion colloidal sol；
(5) conductive ion colloidal sol made of the nickel plating copper wire inserting step (4) for obtaining step (3)；Radical is adjustable；
(6) insertion platinum obtains the coaxial cylindrical spin capacitor based on Cu/Ni to electrode.
The magnetism for the spin capacitor pressurization front and back that the present embodiment is prepared is measured, as a result such as Fig. 6.
Protection content of the invention is not limited to above embodiments.Without departing from the spirit and scope of the invention, originally
Field technical staff it is conceivable that variation and advantage be all included in the present invention, and with appended claims be protect
Protect range.
Claims (3)
1. a kind of coaxial spin capacitor, which is characterized in that deposit one layer of magnetic material on non-magnetic conductor surface, form magnetic material
The coaxial electrode is inserted into conductive ion colloidal sol and forms coaxial spin electricity to electrode with corresponding by the coaxial electrode for expecting package
Hold, in which: the non-magnetic conductor is copper, aluminium, silver, gold, platinum, copper alloy, aluminium alloy, silver alloy, billon, platinum alloy, fluorine
The tin oxide or tin indium oxide conductive oxide of doping；The magnetic material is nickel, cobalt, iron, gadolinium, nickel alloy, cobalt alloy, iron conjunction
Gold, gadpolinium alloy or manganese, iron, cobalt, nickel Organic Complex Molecule magnet；The conductive ion colloidal sol is made of conductive ion liquid
Ion glue；Described is copper, aluminium, silver, gold, platinum, copper alloy, aluminium alloy, silver alloy, billon, platinum alloy, Fluorin doped to electrode
Tin oxide or tin indium oxide conductive oxide.
2. a kind of preparation method for the capacitor that coaxially spins described in claim 1, it is characterised in that method includes the following steps:
(1) first that non-magnetic conductor is 5~30 minutes ultrasonic in a solvent, then it is immersed in the acid solution of 0.005~0.05mol/L
In 1 minute；It is washed with deionized water after taking out；
(2) electroplate liquid for preparing magnetic material adjusts pH value to 1.0~7.0；
(3) after electroplate liquid being heated to 5~70 DEG C, electrolyte is put into using nonmagnetic metal and carbon-point as anode and cathode
In, electric current is applied to it by the galvanostatic method of electrochemical workstation, obtains the coaxial electrode of magnetic material package；
(4) it will gather inclined styrene-hexafluoropropylene copolymer, and conductive ion liquid and water acetone be gone to be dissolved in together, and be put into vacuum drying
It is dry in case, obtain conductive ion colloidal sol, wherein the mass ratio of three is 1:1~10:1~10；
(5) will prepared by the coaxial electrode inserting step (4) of magnetic material package in conductive ion colloidal sol, be inserted into copper,
Aluminium, silver, gold, platinum, copper alloy, aluminium alloy, silver alloy, billon, platinum alloy, the tin oxide of Fluorin doped or tin indium oxide conduction oxygen
Compound is used as to electrode, obtains the capacitor that coaxially spins；Wherein:
The solvent is water, ethyl alcohol or acetone；The acid solution is hydrochloric acid solution or sulfuric acid solution；
The non-magnetic conductor is copper, aluminium, silver, gold, platinum, copper alloy, aluminium alloy, silver alloy, billon, platinum alloy, Fluorin doped
Tin oxide or tin indium oxide conductive oxide；
The magnetic material be nickel, cobalt, iron, gadolinium, nickel alloy, cobalt alloy, ferroalloy, gadpolinium alloy or manganese, iron, cobalt, nickel it is organic
Complex molecule magnet；
The conductive ion liquid is by quaternary ammonium salt cationic, quaternary phosphine salt cation, imidazoles salt cation or pyrroles's salt cation and halogen
Plain anion, tetrafluoroborate anion or hexafluoro-phosphate radical anion composition.
3. a kind of application for the capacitor that coaxially spins described in claim 1, it is characterised in that the capacitor that coaxially spins is in spinning electron
Application in device, information storage and electricity storage.
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| CN201611034674.9A CN106783809B (en) | 2016-11-23 | 2016-11-23 | A kind of coaxial capacitor and preparation method of spinning |
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| CN106783809B true CN106783809B (en) | 2019-03-01 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1550030A (en) * | 2000-08-22 | 2004-11-24 | ����ѧԺ���»� | Elongated semiconductors, growing such semiconductors, devices including such semiconductors and fabricating such devices |
| CN1961377A (en) * | 2004-05-11 | 2007-05-09 | 弘世科技公司 | Spin barrier enhanced magnetoresistance effect element and magnetic memory using the same |
| CN101019190A (en) * | 2004-05-11 | 2007-08-15 | 弘世科技公司 | Spin barrier enhanced dual magnetoresistance effect element and magnetic memory using the same |
| CN102194848A (en) * | 2010-03-19 | 2011-09-21 | 株式会社东芝 | Spin memory and spin transistor |
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2016
- 2016-11-23 CN CN201611034674.9A patent/CN106783809B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1550030A (en) * | 2000-08-22 | 2004-11-24 | ����ѧԺ���»� | Elongated semiconductors, growing such semiconductors, devices including such semiconductors and fabricating such devices |
| CN1961377A (en) * | 2004-05-11 | 2007-05-09 | 弘世科技公司 | Spin barrier enhanced magnetoresistance effect element and magnetic memory using the same |
| CN101019190A (en) * | 2004-05-11 | 2007-08-15 | 弘世科技公司 | Spin barrier enhanced dual magnetoresistance effect element and magnetic memory using the same |
| CN102194848A (en) * | 2010-03-19 | 2011-09-21 | 株式会社东芝 | Spin memory and spin transistor |
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