Manipulating the spin states in a double molecular magnets tunneling junction |
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| Authors: | Liang Jiang Xi Liu Zhengzhong Zhang Ruiqiang Wang |
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| Institution: | 1. National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China;2. Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China;3. Laboratory of Quantum Engineering and Quantum Materials, South China Normal University, Guangzhou 510006, China |
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| Abstract: | We theoretically explore the spin transport through nano-structures consisting of two serially coupled single-molecular magnets (SMM) sandwiched between two nonmagnetic electrodes. We find that the magnetization of SMM can be controlled by the spin transfer torque with respect to the bias voltage direction, and the electron current can be switched on/off in different magnetic structures. Such a manipulation is performed by full electrical manner, and needs neither external magnetic field nor ferromagnetic electrodes in the tunneling junction. The proposal device scheme can be realized with the use of the present technology 6] and has potential applications in molecular spintronics or quantum information processing. |
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| Keywords: | Single molecular magnet Spin-transfer torque Hysteresis loop |
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