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Spin Seebeck effect in a metal-single-molecule-magnet-metal junction
oleh: Pengbin Niu, Lixiang Liu, Xiaoqiang Su, Lijuan Dong, Hong-Gang Luo
Format: | Article |
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Diterbitkan: | AIP Publishing LLC 2018-01-01 |
Deskripsi
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.