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2011 | 119 | 5 | 602-605
Article title

Spin-Orbit Coupling in n-Type PbTe/PbEuTe Quantum Wells

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Abstracts
EN
Magnetoresistance measurements were performed on an n-type PbTe/PbEuTe quantum well and weak antilocalization effects were observed. This indicates the presence of spin-orbit coupling phenomena and we showed that the Rashba effect is the main mechanism responsible for this spin-orbit coupling. Using the model developed by Iordanskii et al., we fitted the experimental curves and obtained the inelastic and spin-orbit scattering times. Thus we could compare the zero field energy spin-splitting predicted by the Rashba theory with the energy spin-splitting obtained from the analysis of the experimental curves. The final result confirms the theoretical prediction of strong Rashba effect on IV-VI based quantum wells.
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Contributors
author
  • Instituto de Ciências Exatas, Departamento de Física e Química, Universidade Federal de Itajubá, Itajubá, PB 50, 37500-903, MG, Brazil
author
  • Instituto de Física, Universidade de São Paulo, PB 66318, 05315-970 São Paulo, SP, Brazil
author
  • Grenoble High Magnetic Field Laboratory, CNRS, BP 166, 38042 Grenoble Cedex 9, France
author
  • Instituto de Física, Universidade de São Paulo, PB 66318, 05315-970 São Paulo, SP, Brazil
author
  • Laboratório Associado de Sensores e Materiais, Instituto Nacional de Pesquisas Espaciais, PB 515, 12201-970 São José dos Campos, SP, Brazil
author
  • Laboratório Associado de Sensores e Materiais, Instituto Nacional de Pesquisas Espaciais, PB 515, 12201-970 São José dos Campos, SP, Brazil
author
  • Laboratório Associado de Sensores e Materiais, Instituto Nacional de Pesquisas Espaciais, PB 515, 12201-970 São José dos Campos, SP, Brazil
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bwmeta1.element.bwnjournal-article-appv119n508kz
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