Spin polarization and spin separation realized in the double-helical molecules |
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| Affiliation: | 1. Kantonsschule Frauenfeld, Ringstrasse 10, CH-8500 Frauenfeld, Switzerland;2. Instituto de Física Interdisciplinar y Sistemas Complejos IFISC (UIB-CSIC), E-07122 Palma de Mallorca, Spain;1. Department of Physics, The University of Burdwan, West Bengal, India;2. School of Materials Science and Engineering, North West Polytechnical University, Xi’an, Shannxi, China;3. Department of Physics, Jhargram Raj College, Paschim Medinipur, West Bengal, India |
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| Abstract: | We investigate the electron transport through one double-helical molecule with four terminals, by considering one terminal to be the source and others to be the drains. It is found that notable spin polarizations simultaneously occur during the processes of intra-chain electron tunneling and inter-chain electron reflection. More importantly, in these two processes, the spin polarizations always show similar strengths and opposite directions. Based on these results, we consider that the spin polarization and spin separation can be co-realized in this system. |
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| Keywords: | Double-helical molecules Electron transport Spin polarization Spin separation |
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