Metastable Charge Distribution Between Degenerate Landau Levels
Mesoscale and Nanoscale Physics
2024-02-27 v2 Strongly Correlated Electrons
Abstract
We study two dimensional electron systems confined in wide quantum wells whose subband separation is comparable with the Zeeman energy. Two N = 0 Landau levels from different subbands and with opposite spins are pinned in energy when they cross each other and electrons can freely transfer between them. When the disorder is strong, we observe clear hysteresis in our data corresponding to instability of the electron distribution in the two crossing levels. When the intra-layer interaction dominates, multiple minima appear when a Landau level is 1/3 or 2/3 filled and fractional quantum hall effect can be stabilized.
Keywords
Cite
@article{arxiv.2309.04166,
title = {Metastable Charge Distribution Between Degenerate Landau Levels},
author = {Wenlu Lin and Xing Fan and Lili Zhao and Yoon Jang Chung and Adbhut Gupta and Kirk W. Baldwin and Loren Pfeiffer and Hong Lu and Yang Liu},
journal= {arXiv preprint arXiv:2309.04166},
year = {2024}
}