Exciton valley dynamics probed by Kerr rotation in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">WSe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>monolayers

R. Zhu, C.; Zhang, K.; M. Glazov, M.; Urbaszek, Bernhard; Amand, T.; Ji, Ziwu; Liu, Baoli; Marie, X.

doi:10.1103/physrevb.90.161302

Public

Exciton valley dynamics probed by Kerr rotation inWSe2monolayers

Published in Physical Review B • Oct 6, 2014

Authors:

C. R. Zhu

K. Zhang

M. M. Glazov

Abstract

We have experimentally studied the pump-probe Kerr rotation dynamics in ${\mathrm{WSe}}_{2}$ monolayers. This yields a direct measurement of the exciton valley depolarization time ${\ensuremath{\tau}}_{v}$. At $T=4\phantom{\rule{0.28em}{0ex}}\mathrm{K}$, we find ${\ensuremath{\tau}}_{v}\ensuremath{\...

Subject

Exciton

Physics

Relaxation (psychology)

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