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Room-Temperature Spin Transport in Metal Nanocluster-Based Spin Valves |
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| Authors: | Yanfei Zhu Lidan Guo Jun Guo Luyang Zhao Chunyan Li Xueying Qiu Yang Qin Xianrong Gu Prof Xiangnan Sun Prof Zhiyong Tang |
| Institution: | 1. CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 P. R. China
University of Chinese Academy of Sciences, Beijing, 100049 P. R. China These authors contributed equally to this work.;2. State Key Laboratory of Separation Membranes and Membrane Processes, School of Chemistry, Tiangong University, Tianjin, 300387 P. R. China;3. University of Chinese Academy of Sciences, Beijing, 100049 P. R. China;4. CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 P. R. China;5. CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 P. R. China University of Chinese Academy of Sciences, Beijing, 100049 P. R. China |
| Abstract: | As a new type of inorganic-organic hybrid semiconductor, quantum-confined atomically precise metal nanoclusters (MNCs) have been widely applied in the fields of chemical sensing, optical imaging, biomedicine and catalysis. Herein, we successfully design and fabricate the first example of MNC-based spin valves (SVs) that exhibit remarkable magnetoresistance (MR) value up to 1.6 % even at room temperature (300 K). The concomitant photoresponse of MNC-based SVs unambiguously confirms that the spin-polarized electron transmission takes place across the MNC interlayer. Furthermore, the spin-dependent transport property of MNC-based SVs is largely varied by changing the atomic structure of MNCs. Both experimental proofs and quantum chemistry calculations reveal that the atomic structure-discriminative spin transport behavior is attributed to the distinct spin-orbit coupling (SOC) effect of MNCs. |
| Keywords: | Magnetic Resistance Metal Nanoclusters Photoresponse Spin Valves |