arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2301.01475cond-mat.mes-hall
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维格纳晶体的动态响应

Dynamic Response of Wigner Crystals

Lili Zhao, Wenlu Lin, Yoon Jang Chung, Adbhut Gupta, Kirk W. Baldwin, Loren N. Pfeiffer, Yang Liu

AI总结:

本文通过电容测量技术,在器件长度与晶体关联长度相当且处于单晶区域的条件下,定量研究了二维电子系统中维格纳晶体的动态响应,极大地推动了对该电子固相的探索。

摘要:

维格纳晶体是一种有序的电子阵列,是最早被提出由电子-电子相互作用稳定的多个多体相之一。这种电子固相已在极低温下的超洁净二维电子系统中被报道,其中库仑相互作用主导动能、无序势和热涨落。我们通过电容测量仔细研究了这种量子相,其中器件的长度尺度与晶体的关联长度相当。我们技术的高超性能使得在单晶区域内定量研究维格纳晶体的动态响应成为可能。我们的结果将极大地推动对这种难以理解的电子固体的研究。

英文摘要:

The Wigner crystal, an ordered array of electrons, is one of the very first proposed many-body phases stabilized by the electron-electron interaction. This electron solid phase has been reported in ultra-clean two-dimensional electron systems at extremely low temperatures, where the Coulomb interaction dominants over the kinetic energy, disorder potential and thermal fluctuation. We closely examine this quantum phase with capacitance measurements where the device length-scale is comparable with the crystal's correlation length. The extraordinarily high performance of our technique makes it possible to quantitatively study the dynamic response of the Wigner crystal within the single crystal regime. Our result will greatly boost the study of this inscrutable electron solid.

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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