Spin-current injection and detection in κ-(BEDT-TTF)2Cu[N(CN)2]Br
Source abstract
Abstract
Spin-current injection into an organic semiconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br film induced by the spin pumping from an yttrium iron garnet (YIG) film. When magnetization dynamics in the YIG film is excited by ferromagnetic or spin-wave resonance, a voltage signal was found to appear in the κ-(BEDT-TTF)2Cu[N(CN)2]Br film. Magnetic-field-angle dependence measurements indicate that the voltage signal is governed by the inverse spin Hall effect in κ-(BEDT-TTF)2Cu[N(CN)2]Br. We found that the voltage signal in the κ-(BEDT-TTF)2Cu[N(CN)2]Br/YIG system is critically suppressed around 80 K, around which magnetic and/or glass transitions occur, implying that the efficiency of the spin-current injection is suppressed by fluctuations which critically enhanced near the transitions.
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Research context
OpenAlex topics: Organic and Molecular Conductors Research · Magnetism in coordination complexes · Quantum and electron transport phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Tohoku University 1 WPI Advanced Institute for Materials Research, , Sendai 980-8577, Japan
Japan Science and Technology Agency 2 Spin Quantum Rectification Project, ERATO, , Aoba-ku, Sendai 980-8577, Japan
Institute for Molecular Science 3 Research Center of Integrative Molecular Systems (CIMoS), , Okazaki 444-8585, Japan
Tohoku University 4 Institute for Materials Research, , Sendai 980-8577, Japan
Japan Science and Technology Agency 5 PRESTO, , Saitama 332-0012, Japan
6RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan
Japan Atomic Energy Agency 7 Advanced Science Research Center, , Tokai 319-1195, Japan
Funding
Japan Society for the Promotion of Science
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