Anomalous Hall Effect in Two-dimensional Semiconductors: the Roles of Electron-Impurity and Electron-Phonon Scatterings

作者：Liu, S Y^*; Horing, N J Morgenstern; Lei, X L; Sawamura, M

来源：7th IEEE Conference on Nanotechnology, China,Hong Kong, 2007-08-02 to 2007-08-05.

DOI：10.1109/NANO.2007.4601221

• Anomalous-Hall-Effect
• Electric-Field-Induced-SHE
• Impurity & Phonon Scattering
• Quantum-Well
• Side-Jump
• Skew Scattering
• Spin-Orbit-Coupling
• Temperature

Taking account of both the electron-impurity and electron-phonon scatterings, the anomalous Hall effect in two dimensional electron systems is investigated by means of a kinetic equation approach. The spin-orbit coupling directly induced by an external driving electric field and the extrinsic spin-orbit coupling (associated with electron-impurity and electron-phonon scatterings) are included. The side-jump and skew-scattering contributions arising from these spin-orbit couplings to anomalous Hall current are expressed in terms of the distribution function. Performing a numerical calculation for InSb/AlInSb quantum wells, we analyze the effects of both electron-impurity and electron-phonon scatterings on anomalous Hall current. The temperature dependence of anomalous Hall current is also studied in the regime O<T<300K.

• 出版日期2007
• 单位上海交通大学