Electrical manipulation of spins in a nanowire with Rashba interaction |
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| Institution: | 1. Department of Applied Physics, University for Development Studies, Navrongo, Ghana;2. Department of Physics, College of Agriculture and Natural Sciences, U.C.C., Ghana;3. Department of Mathematics, College of Agriculture and Natural Sciences, U.C.C., Ghana;1. School of Materials Science and Engineering, Shandong Jianzhu University, Fengming Road #1000, Jinan 250101, PR China;2. Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506, USA;3. Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, PR China;1. Department of Solid State Physics, Yerevan State University, Alex Manoogian 1, 0025 Yerevan, Armenia;2. National University of Architecture and Construction of Armenia, Teryan 105, 0009 Yerevan, Armenia;3. Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica, Chile;4. SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom;1. Department of Physics and Engineering, Moldova State University, Chisinau MD-2009, Republic of Moldova;2. Institute of Applied Physics, Moldavian Academy of Science, Chisinau MD-2028, Republic of Moldova;3. Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea;1. National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, RO-400293 Cluj-Napoca, Romania;2. Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 South University Ave, Little Rock 72204, USA;3. Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Ave, Little Rock 72204, USA;1. College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, PR China;2. School of New Energy, Shenyang Institute of Engineering, Shenyang 110136, PR China;3. College of Petroleum Engineering, Liaoning Shihua University, Fushun 113001, PR China |
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| Abstract: | We investigate the influence of external electric fields on the spins of a ballistic nanowire in terms of variations of the Rashba parameter and modification of the confinement potential. For a weak Rashba effect, the spins along the confinement direction in a given subband nearly assume full quantization. In the presence of a perpendicular magnetic field, the state of quantization can be manipulated using a transverse electric. This process requires modifications in the spin textures. If an in-plane magnetic field is applied, spins suffer rigid displacement to one edge of the wire and their expectation value becomes independent of the transverse electric field. |
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| Keywords: | Spin textures Rashba effect Transverse electric field Nanowire |
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