Longitudinal interlayer magnetoresistance in strongly anisotropic quasi-two-dimensional metals

Article

关键词: 2-DIMENSIONAL ELECTRON-SYSTEM;    DEPENDENT OSCILLATORY MAGNETORESISTANCE;    STRONG MAGNETIC-FIELD;    QUANTUM TRANSPORT;    FERMI-SURFACE;    TEMPERATURE;    IMPURITIES;    COHERENT;    DENSITY;    STATES;   

DOI  :  10.1103/PhysRevB.88.054415

来源: SCIE

【 摘 要 】

In strongly anisotropic quasi-two-dimensional (2D) metals, where the interlayer band width is less than the Landau level separation, the role of impurity scattering is enhanced by a magnetic field perpendicular to the conducting layers. This leads to a longitudinal magnetoresistance (MR) in contrast to the prediction of classical theory based on the constant-tau approximation. The MR has a square-root dependence R-zz (B-z) in a strong field, being linear in the intermediate region. The crossover field allows to estimate the interlayer transfer integral or electron mean-free time. Longitudinal interlayer MR, being robust to the increase of temperature or long-range disorder, is easy for measurements and provides a useful tool to investigate the electronic structure of quasi-2D compounds.

【 授权许可】

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