Effect of the spin-orbit interaction on the band structure and conductance of quasi-one-dimensional systems

Article

关键词: QUANTUM POINT CONTACTS;    ELECTRON-GAS;    MAGNETIC-FIELD;    QUANTIZED CONDUCTANCE;    INVERSION ASYMMETRY;    WELLS;    WIRES;    LOCALIZATION;    TRANSPORT;    ANTILOCALIZATION;   

DOI  :  10.1103/PhysRevB.60.14272

来源: SCIE

【 摘 要 】

We discuss the effect of the spin-orbit interaction on the band structure, wave functions, and low temperature conductance of long quasi-one-dimensional electron systems patterned in two-dimensional electron gases (2DEG). Our model for these systems consists of a linear (Rashba) potential confinement in the direction perpendicular to the 2DEG and a parabolic confinement transverse to the 2DEG. We find that these two terms can significantly affect the band structure introducing a wave vector dependence to subband energies, producing additional subband minima, and inducing anticrossings between subbands, We discuss the origin of these effects in the symmetries of the subband wave functions. [S0163-1829(99)07143-X].

【 授权许可】

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