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arXiv 1612.06372cond-mat.str-el
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最低朗道能级的非线性电导和集体电荷激发

Non linear conductivity and collective charge excitations in the lowest Landau level

Assa Auerbach, Daniel P. Arovas

摘要:

对于弱无序分数量子霍尔相位,非线性光电导与清洁系统的电荷磁化率通过Floquet升压相关。因此,它可能是有可能的探测集体电荷模式在有限波矢量的电输运。不可压缩相,在略高于磁-转子间隙照射,预测表现出负的光电导和零电阻状态与自发的内部电场。非线性电导率可以探测可压缩填充因子中复合费米子的电荷激发。

英文摘要:

For weakly disordered fractional quantum Hall phases, the non linear photoconductivity is related to the charge susceptibility of the clean system by a Floquet boost. Thus, it may be possible to probe collective charge modes at finite wavevectors by electrical transport. Incompressible phases, irradiated at slightly above the magneto-roton gap, are predicted to exhibit negative photoconductivity and zero resistance states with spontaneous internal electric fields. Non linear conductivity can probe composite fermions' charge excitations in compressible filling factors.

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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