Spin Hall magnetoresistance at high temperatures
Creators
- 1. Spin Quantum Rectification Project, ERATO, Japan Science and Technology Agency, Sendai 980-8577 (Japan)
- 2. PRESTO, Japan Science and Technology Agency, Saitama 332-0012 (Japan)
- 3. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
- 4. WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
- 5. Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195 (Japan)
- 6. CREST, Japan Science and Technology Agency, Tokyo 102-0076 (Japan)
Description
The temperature dependence of spin Hall magnetoresistance (SMR) in Pt/Y3Fe5O12 (YIG) bilayer films has been investigated in a high temperature range from room temperature to near the Curie temperature of YIG. The experimental results show that the magnitude of the magnetoresistance ratio induced by the SMR monotonically decreases with increasing the temperature and almost disappears near the Curie temperature. We found that, near the Curie temperature, the temperature dependence of the SMR in the Pt/YIG film is steeper than that of a magnetization curve of the YIG; the critical exponent of the magnetoresistance ratio is estimated to be 0.9. This critical behavior of the SMR is attributed mainly to the temperature dependence of the spin-mixing conductance at the Pt/YIG interface
Additional details
Identifiers
- DOI
- 10.1063/1.4907546;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 106
- Journal Issue
- 5
- Journal Page Range
- p. 052405-052405.5
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46126152
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- CURIE POINT; FERRITE GARNETS; FILMS; HALL EFFECT; IRON OXIDES; MAGNETIZATION; MAGNETORESISTANCE; PLATINUM; SPIN; YTTRIUM COMPOUNDS
- Descriptors DEC
- ANGULAR MOMENTUM; CHALCOGENIDES; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTS; IRON COMPOUNDS; METALS; MINERALS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; PLATINUM METALS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; TRANSITION TEMPERATURE
Optional Information
- Notes
- (c) 2015 AIP Publishing LLC