arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1607.01063cond-mat.mes-hall
收藏

圆极化和线极化光激励下微波辐射感生磁阻振荡的比较研究

Comparative study of microwave radiation-induced magnetoresistive oscillations induced by circularly- and linearly- polarized photo-excitation

Tianyu Ye, Han-Chun Liu, Zhuo Wang, W. Wegscheider, Ramesh G. Mani

摘要:

对高迁移率GaAs/AlGaAs异质结构二维电子系统(2DES)在线极化和圆极化微波激励下的辐射感生磁电阻振荡进行了比较研究,结果表明,在旋转微波发射器时,两种情况下的响应有很大差异,尽管在低磁场下观察到的圆极化微波辐射引起的磁阻振荡与在低磁场下观察到的磁致电阻振荡类似,用线性偏振辐射观察到的振荡。对于线性极化辐射,磁阻响应是发射器旋转(或线性极化)角度θ的强正弦函数。对于圆极化辐射,振荡磁阻响应对θ几乎不敏感。

英文摘要:

A comparative study of the radiation-induced magnetoresistance oscillations in the high mobility GaAs/AlGaAs heterostructure two dimensional electron system (2DES) under linearly- and circularlypolarized microwave excitation indicates a profound difference in the response observed upon rotating the microwave launcher for the two cases, although circularly polarized microwave radiation induced magnetoresistance oscillations observed at low magnetic fields are similar to the oscillations observed with linearly polarized radiation. For the linearly polarized radiation, the magnetoresistive response is a strong sinusoidal function of the launcher rotation (or linear polarization) angle, θ. For circularly polarized radiation, the oscillatory magnetoresistive response is hardly sensitive to θ.

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。

↑