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arXiv 0905.3457cond-mat.mes-hallcond-mat.mtrl-sci
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非量子化电场和磁场作用下超晶格中的电流振荡

Current oscillations in a superlattice under non-quantizing electric and magnetic fields

G. M. Shmelev, E. M. Epshtein, M. B. Belonenko

摘要:

本文计算了在非量子化电场和磁场交叉作用下抛物型能带半导体超晶格中的电流密度。被认为是Corbino磁盘的几何形状。电流-电压曲线包含周期与磁场成比例的振荡。指出了负绝对电导率的可能性。在足够高的电场下,安培-高斯特性也包含过冲。在所有情况下,峰随着温度升高而模糊。

英文摘要:

We calculate the current density in a semiconductor superlattice with parabolic miniband under crossed non-quantizing electric and magnetic fields. The Corbino disk geometry is considered. The current-voltage curve contains oscillations with period proportional to the magnetic field. The possibility is shown of the negative absolute conductivity. The Ampere-Gauss characteristics also contain overshoots under high enough electric fields. In all cases, the peaks smear with temperature rising.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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