Spin Seebeck effect in a metal-single-molecule-magnet-metal junction
Source abstract
Abstract
We investigate the nonlinear regime of temperature-driven spin-related currents through a single molecular magnet (SMM), which is connected with two metal electrodes. Under a large spin approximation, the SMM is simplified to a natural two-channel model possessing spin-opposite configuration and Coulomb interaction. We find that in temperature-driven case the system can generate spin-polarized currents. More interestingly, at electron-hole symmetry point, the competition of the two channels induces a temperature-driven pure spin current. This device demonstrates that temperature-driven SMM junction shows some results different from the usual quantum dot model, which may be useful in the future design of thermal-based molecular spintronic devices.
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Research context
OpenAlex topics: Quantum and electron transport phenomena · Molecular Junctions and Nanostructures · Magnetism in coordination complexes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Solid State Physics and Department of Physics, Shanxi Datong University 1 , Datong 037009, China
Center for Interdisciplinary Studies, Lanzhou University 2 , Lanzhou 730000, China and , Beijing 100084, China
Beijing Computational Science Research Center 2 , Lanzhou 730000, China and , Beijing 100084, China
Funding
Shanxi Provincial applicable fundamental research Foundation · Shanxi Provincial Scientific and Technological Project · National Natural Science Foundation of China
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