期刊
PHYSICAL REVIEW B
卷 61, 期 24, 页码 16730-16735出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.61.16730
关键词
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We propose a model that explains the experimental observation of spontaneous spin polarization of conducting electrons in quasi-one-dimensional AlxGa1-xAs/GaAs channels [K. J. Thomas, J. T. Nicholls, M. Y. Simmons, M. Pepper, D. R. Mace, and D. A. Ritchie, Phys. Rev. Lett. 77, 135 (1996); K. J. Thomas, J. T. Nicholls, M. J. Appeyard, M. Y. Simmons, M. Pepper, D. R. Mace, W. R. Tribe, and D. A. Ritchie, Phys. Rev. B 58. 4846 (1998)]. We show that a ferromagnetic order is a generic property of a quasi-one-dimensional conducting channel embedded in a Wigner crystal. We also discuss gate voltage, magnetic field, and temperature dependences of the channel's conductance.
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