RU94036628A - Method for determining movement speed of magnetic vortex lattice in type-ii superconductor - Google Patents

Method for determining movement speed of magnetic vortex lattice in type-ii superconductor

Info

Publication number
RU94036628A
RU94036628A RU94036628/09A RU94036628A RU94036628A RU 94036628 A RU94036628 A RU 94036628A RU 94036628/09 A RU94036628/09 A RU 94036628/09A RU 94036628 A RU94036628 A RU 94036628A RU 94036628 A RU94036628 A RU 94036628A
Authority
RU
Russia
Prior art keywords
frequency
spin wave
frequency characteristic
superconductor
magnetic vortex
Prior art date
Application number
RU94036628/09A
Other languages
Russian (ru)
Other versions
RU2079146C1 (en
Inventor
С.В. Яковлев
Original Assignee
Научно-исследовательский институт "Домен"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Научно-исследовательский институт "Домен" filed Critical Научно-исследовательский институт "Домен"
Priority to RU94036628A priority Critical patent/RU2079146C1/en
Publication of RU94036628A publication Critical patent/RU94036628A/en
Application granted granted Critical
Publication of RU2079146C1 publication Critical patent/RU2079146C1/en

Links

Landscapes

  • Measuring Magnetic Variables (AREA)

Abstract

FIELD: cryogenic SHF microelectronics. SUBSTANCE: speed of movement of magnetic vortex lattice is one of key indicators of properties of superconductive material of type-II. Superconductor is subjected to action of spin wave with power 1.0-100.0 μWW and frequency in range 2-8 GHz, amplitude-frequency characteristic and phase-frequency characteristic of spin wave are measured, absorption frequency Fo of spin wave across magnetic vortex lattice is determined by amplitude-frequency characteristic. Speed Vo of propagation of spin wave on absorption frequency Fo is found by phase- frequency characteristic. Transport current with value from 0 to I of critical value is passed through superconductor, amplitude-frequency characteristic is measured and used to determine absorption frequency Foof spin wave across moving magnetic vortex lattice. Speed of movement of magnetic vortex lattice is determined by formula V= (F-F)V/F. EFFECT: increased accuracy of determination of speed of movement of magnetic vortex lattice, decreased cost of method.

Claims (1)

Изобретение относится к криогенной СВЧ микроэлектронике и предназначено для определения скорости движения решетки магнитных вихрей (РМВ) в сверхпроводниках П-го рода. Скорость решетки является одним из основных показателей свойств сверхпроводникового материала П-го рода. Цель изобретения - повышение точности определения скорости движения решетки магнитных вихрей. Сущность изобретения: на сверхпроводник воздействуют спиновой волной мощностью 1 - 100 мкВт и частотой в диапазоне 2 - 8 ГГц, снимают амплитудно-частотную характеристику и фазочастотную характеристику спиновой волны, по амплитудно-частотной характеристике определяют частоту поглощения F0 спиновой волны на РМВ, по фазочастотной характеристике определяют скорость распространения спиновой волны Vo на частоте поглощения F0, пропускают через сверхпроводник транспортный ток со значением от О до 1 критической, снимают амплитудно-частотную характеристику, по которой определяют частоту поглощения спиновой волны на движущейся РМВ, а скорость РМВ определяют по формуле, указанной в описании.Технический результат изобретения состоит в повышении точности определения скорости движения РМВ и удешевлении способа.The invention relates to cryogenic microwave microelectronics and is intended to determine the velocity of the lattice of magnetic vortices (RMV) in the nth kind of superconductors. The lattice velocity is one of the main indicators of the properties of the nth kind of superconducting material. The purpose of the invention is to increase the accuracy of determining the speed of the lattice of magnetic vortices. The essence of the invention: a superconductor is affected by a spin wave with a power of 1 - 100 μW and a frequency in the range of 2 - 8 GHz, the amplitude-frequency characteristic and phase-frequency characteristic of the spin wave are taken, the absorption frequency F 0 of the spin wave on the PMW is determined by the amplitude-frequency characteristic, by the phase-frequency the characteristic is determined by the spin wave propagation velocity V o at the absorption frequency F 0 , a transport current with a value from O to 1 critical is passed through a superconductor, and the amplitude-frequency characteristic the rate by which the spin wave absorption frequency on the moving PMW is determined, and the speed of the RMW is determined by the formula specified in the description. The technical result of the invention is to increase the accuracy of determining the motion velocity of the RMB and to reduce the cost of the method.
RU94036628A 1994-09-15 1994-09-15 Method for detection of speed of magnetic vortex flow in second-type superconductors RU2079146C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94036628A RU2079146C1 (en) 1994-09-15 1994-09-15 Method for detection of speed of magnetic vortex flow in second-type superconductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94036628A RU2079146C1 (en) 1994-09-15 1994-09-15 Method for detection of speed of magnetic vortex flow in second-type superconductors

Publications (2)

Publication Number Publication Date
RU94036628A true RU94036628A (en) 1996-07-20
RU2079146C1 RU2079146C1 (en) 1997-05-10

Family

ID=20161096

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94036628A RU2079146C1 (en) 1994-09-15 1994-09-15 Method for detection of speed of magnetic vortex flow in second-type superconductors

Country Status (1)

Country Link
RU (1) RU2079146C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2786486C1 (en) * 2022-10-10 2022-12-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский национальный исследовательский государственный университет имени Н.Г. Чернышевского" Controlled delay line on exchanged spin waves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2786486C1 (en) * 2022-10-10 2022-12-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский национальный исследовательский государственный университет имени Н.Г. Чернышевского" Controlled delay line on exchanged spin waves

Also Published As

Publication number Publication date
RU2079146C1 (en) 1997-05-10

Similar Documents

Publication Publication Date Title
Sonier et al. Field induced reduction of the low-temperature superfluid density in YBa 2 Cu 3 O 6.95
Bratus et al. dc-current transport and ac Josephson effect in quantum junctions at low voltage
Simmonds et al. Analog computer simulation of weakly connected superconducting rings
Ustinov et al. Giant radiation linewidth of multifluxon states in long Josephson junctions
Yamazaki Interlayer Exchange Field in (C n H2 n+ 1NH3) 2CuCl4 with n= 1-6 and (C6H5C m H2 m NH3) 2CuCl4 with m= 1, 2 Determined by Parallel Pumping Experiment
Miklich et al. Low‐frequency excess noise in YBa2Cu3O7− x dc superconducting quantum interference devices cooled in static magnetic fields
Tien et al. Magnetic resonance of heavy-fermion superconductors and high-T c superconductors
RU94036628A (en) Method for determining movement speed of magnetic vortex lattice in type-ii superconductor
Onogi et al. Power-law dissipative behavior in high-Tc superconductor
Senning et al. Nonlinear microwave response of superconductors
Bulaevskii et al. Sound generation by the vortex flow in type-II superconductors
Lyubchenko et al. Low-field microwave absorption in high-Tc superconductors based on olygo-and polyphthalocyanines
Sinclair et al. Ultrasonic Investigation of the Isolated-Vortex State near H c 1 in Vanadium
Gallitto et al. Field-induced variations of the microwave surface impedance of YBa 2 Cu 3 O 7 crystals near T c
Gupta et al. Aharonov-Bohm effect in the presence of evanescent modes
Blatter et al. Sound attenuation by helicon modes in high-T c superconductors
Zhelezina et al. Magnetic flux penetration into a superconducting double stripline with an edge barrier
Ruby et al. Switching probability of QFP comparators as a function of exciter slew-rate
Srinivasan et al. Direct observation of surface wave excitations in magnetostatic wave devices
SU1706010A1 (en) Delay line for shf-signal
Owens Flux flow induced microwave absorption in high temperature superconductor Bi2− XPbXSr2CaN− 1CuNO4+ 2N
Tachiki et al. Flux flow of La-Sr-Cu-O single crystals
Hontsu et al. Microwave‐induced substeps in I‐V curves of a parallel array of microbridge‐type Josephson junctions
Belanger et al. Determination of the group velocity of magnetic polaritons in FeF2
Ferrigno et al. Influence of the lower limit for the fluxon contraction on the 1-V characteristic of zero field singularities in long Josephson junctions