Dynamic Response of Wigner Crystals.
Dynamic Response of Wigner Crystals.
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DOI：
10.1103/physrevlett.130.246401
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发表时间：
2023-01
影响因子：
8.6
通讯作者：
Lili Zhao;Wen-Hao Lin;Y. J. Chung;Adbhut Gupta;K. Baldwin;L. Pfeiffer;Yang Liu
中科院分区：
文献类型：
--
作者：
Lili Zhao;Wen-Hao Lin;Y. J. Chung;Adbhut Gupta;K. Baldwin;L. Pfeiffer;Yang Liu
维格纳晶体是一种有序的电子阵列，是最早提出的由电子-电子相互作用稳定的多体相之一。我们研究这个量子相位与同时电容和电导测量，并观察到一个大的电容响应，而电导消失。我们研究了一个样品与四个设备的长度尺度是可比的晶体的相关长度，并推导出晶体的弹性模量，介电常数，钉扎强度等，这样一个系统的定量调查的所有属性对一个单一的样品有很大的希望推进维格纳晶体的研究。
The Wigner crystal, an ordered array of electrons, is one of the very first proposed many-body phases stabilized by the electron-electron interaction. We examine this quantum phase with simultaneous capacitance and conductance measurements, and observe a large capacitive response while the conductance vanishes. We study one sample with four devices whose length scale is comparable with the crystal's correlation length, and deduce the crystal's elastic modulus, permittivity, pinning strength, etc. Such a systematic quantitative investigation of all properties on a single sample has a great promise to advance the study of Wigner crystals.