Strongly Interaction-Enhanced Valley Magnetic Response in Monolayer WSe_{2}

Physical Review Letters
Zefang WangJie Shan

Abstract

We measure the doping dependence of the valley Zeeman splitting of the fundamental optical transitions in monolayer WSe_{2} under an out-of-plane magnetic field by optical reflection contrast and photoluminescence spectroscopy. A nonlinear valley Zeeman effect, correlated with an over fourfold enhancement in the g factor, is observed. The effect occurs when the Fermi level crosses the spin-split upper conduction band, corresponding to a change of the spin-valley degeneracy from two to four. The enhancement increases and shows no sign of saturation as the sample temperature decreases. Our result demonstrates the importance of the Coulomb interactions in the valley magnetic response of two-dimensional transition metal dichalcogenide semiconductors.

References

Mar 15, 1989·Physical Review. B, Condensed Matter·B Tanatar, D M Ceperley
Aug 11, 2001·Physical Review Letters·A A ShashkinT M Klapwijk
Jul 5, 2002·Physical Review Letters·Claudio AttaccaliteGiovanni B Bachelet
Dec 18, 2002·Physical Review Letters·Y P ShkolnikovM Shayegan
Jun 8, 2012·Nature Communications·Ting CaoJi Feng
Jun 19, 2012·Nature Nanotechnology·Kin Fai MakTony F Heinz
Jun 19, 2012·Nature Nanotechnology·Hualing ZengXiaodong Cui
Aug 13, 2013·Nature Nanotechnology·Aaron M JonesXiaodong Xu
Jun 28, 2014·Science·K F MakP L McEuen
Jan 24, 2015·Physical Review Letters·Yilei LiTony F Heinz
Feb 7, 2015·Physical Review Letters·David MacNeillDaniel C Ralph
May 6, 2015·Nature Nanotechnology·Chitraleema ChakrabortyA Nick Vamivakas
May 6, 2015·Nature Nanotechnology·Ajit SrivastavaA Imamoğlu
May 6, 2015·Nature Nanotechnology·Yu-Ming HeJian-Wei Pan
May 6, 2015·Nature Nanotechnology·M KoperskiM Potemski
Jun 2, 2015·Nature Communications·V T RenardK Takashina
Jan 26, 2016·Nature Nanotechnology·Jieun LeeJie Shan
Feb 10, 2016·Nature Communications·Andreas V StierScott A Crooker
Aug 2, 2016·Nano Letters·Shiyuan GaoLi Yang
Nov 1, 2016·Nature Nanotechnology·Zefang WangKin Fai Mak
May 2, 2017·Nature Nanotechnology·Chuan ZhaoHao Zeng
Jun 24, 2017·Physical Review Letters·Patrick BackAtac Imamoğlu
Jul 1, 2017·Physical Review Letters·Hema C P MovvaEmanuel Tutuc

❮ Previous
Next ❯

Citations

Mar 28, 2018·Nature Materials·Martin V GustafssonCory R Dean
Jun 7, 2019·Nature Communications·Zhipeng LiSu-Fei Shi
Mar 13, 2019·Nature Nanotechnology·Jonas Gaël RochRichard John Warburton
Mar 24, 2020·Physical Review Letters·Erfu LiuChun Hung Lui
Jun 23, 2020·Physical Review Letters·Thorsten DeilmannMichael Rohlfing
Dec 2, 2020·Nature Nanotechnology·Weijie LiAjit Srivastava
May 14, 2021·ACS Nano·Haiyang LiuJunyong Kang
Feb 23, 2020·Nano Letters·Yaqian WangBo Peng
Nov 8, 2018·The Journal of Physical Chemistry Letters·Hang LiuSheng Meng
Mar 24, 2020·Nano Letters·Manfred ErsfeldBernd Beschoten

❮ 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.