Robust helical edge transport in gated InAs/GaSb bilayers

Physical Review Letters
Lingjie DuRui-Rui Du

Abstract

We have engineered electron-hole bilayers of inverted InAs/GaSb quantum wells, using dilute silicon impurity doping to suppress residual bulk conductance. We have observed robust helical edge states with wide conductance plateaus precisely quantized to 2e^{2}/h in mesoscopic Hall samples. On the other hand, in larger samples the edge conductance is found to be inversely proportional to the edge length. These characteristics persist in a wide temperature range and show essentially no temperature dependence. The quantized plateaus persist to a 12 T applied in-plane field; the conductance increases from 2e^{2}/h in strong perpendicular fields manifesting chiral edge transport. Our study presents a compelling case for exotic properties of a one-dimensional helical liquid on the edge of InAs/GaSb bilayers.

References

Nov 15, 1988·Physical Review. B, Condensed Matter·M Büttiker
Oct 26, 2005·Physical Review Letters·C L Kane, E J Mele
Dec 31, 2005·Physical Review Letters·C L Kane, E J Mele
Apr 12, 2006·Physical Review Letters·Congjun WuShou-Cheng Zhang
Dec 16, 2006·Science·B Andrei BernevigShou-Cheng Zhang
Sep 22, 2007·Science·Markus KönigShou-Cheng Zhang
Jul 23, 2008·Physical Review Letters·Chaoxing LiuShou-Cheng Zhang
Aug 8, 2009·Physical Review Letters·Joseph MaciejkoShou-Cheng Zhang
May 21, 2010·Physical Review Letters·G Tkachov, E M Hankiewicz
Oct 27, 2011·Physical Review Letters·Ivan KnezGerard Sullivan
Dec 12, 2012·Physical Review Letters·Ivan KnezGerard Sullivan
Jun 12, 2013·Physical Review Letters·Jukka I VäyrynenLeonid I Glazman
Jul 26, 2014·Physical Review Letters·Eric M SpantonKathryn A Moler

❮ Previous
Next ❯

Citations

May 12, 2015·Nature Nanotechnology·Vlad S PribiagLeo P Kouwenhoven
Dec 8, 2016·Scientific Reports·Ning LuoH Q Xu
Sep 9, 2016·Scientific Reports·Ye XiongPeiqing Tong
Jun 16, 2017·ACS Applied Materials & Interfaces·Sheng-Shi LiShi-Shen Yan
Jul 6, 2017·Nature Communications·Anil MuraniSophie Guéron
Oct 27, 2017·Nature Materials·Jing Wang, Shou-Cheng Zhang
Oct 7, 2016·Physical Chemistry Chemical Physics : PCCP·Run-Wu ZhangPei-Ji Wang
Mar 23, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Sławomir P Łepkowski, Witold Bardyszewski
Jan 31, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Ya-Ping WangPei-Ji Wang
Dec 8, 2017·Nature Communications·Lingjie DuRui-Rui Du
Jun 15, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·P C Klipstein
Feb 20, 2016·Nature Communications·J Sánchez-BarrigaO Rader
Jun 18, 2016·Nature Communications·Long-Jing YinLin He
Nov 27, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Kunhua ZhangQiang Cheng
Dec 13, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·S P Łepkowski, W Bardyszewski
Oct 10, 2015·Physical Review Letters·Tingxin LiRui-Rui Du
May 14, 2016·Reports on Progress in Physics·Yafei RenQian Niu
Jun 30, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·E B OlshanetskyS A Dvoretsky
May 13, 2017·Physical Review Letters·Johannes Knolle, Nigel R Cooper
Jun 6, 2017·Physical Review Letters·Matija KaralicThomas Ihn
Feb 21, 2019·Science Advances·Yanmeng ShiYong-Tao Cui
Sep 7, 2019·Physical Review Letters·S U PiatrushaV S Khrapai
Oct 22, 2019·Physical Review Letters·Zhongdong HanRui-Rui Du
Jan 21, 2017·Physical Review Letters·Fabrizio NicheleCharles M Marcus
Apr 5, 2017·The Review of Scientific Instruments·Ethan KleinbaumG A Csáthy
Aug 6, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·T CamposG M Sipahi
Mar 27, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Mitra NarimaniZahra Nourbakhsh
Dec 7, 2019·Physical Review Letters·Yong XuZhongshui Ma
Aug 6, 2016·Physical Review Letters·Jian LiRoman M Lutchyn
Sep 28, 2017·Physical Review Letters·Lingjie DuRui-Rui Du
Sep 7, 2019·Physical Review Letters·Pavel D KurilovichMoshe Goldstein

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cardiac Conduction System

The cardiac conduction system is a specialized tract of myocardial cells responsible for maintaining normal cardiac rhythm. Discover the latest research on the cardiac conduction system here.

© 2021 Meta ULC. All rights reserved