Time-resolved kerr rotation spectroscopy of spin dynamics in a quantum Hall system

D. Fukuoka, N. Tanaka, K. Oto, K. Muro, Yoshiro Hirayama, N. Kumada, H. Yamaguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A Time-resolved Kerr rotation spectroscopy under selective excitation by narrow spectrum pump beam is applied to high-mobility two dimensional (2D) electrons. The large non-oscillating Kerr signal is ascribed to the formation of Skyrmions by photoexcited carrier, and is confirmed by the selective excitation in TRKR measurement. The collapse of the spin coherence (dip of T 2*) near ν=1 may be related by the formation of Skyrmions and anti-Skyrmiosn pair under photoexcitation.

Original languageEnglish
Title of host publicationPhysics of Semiconductors - 29th International Conference, ICPS 29
Pages243-244
Number of pages2
DOIs
Publication statusPublished - 2009 Dec 1
Event29th International Conference on Physics of Semiconductors, ICPS 29 - Rio de Janeiro, Brazil
Duration: 2008 Jul 272008 Aug 1

Publication series

NameAIP Conference Proceedings
Volume1199
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other29th International Conference on Physics of Semiconductors, ICPS 29
CountryBrazil
CityRio de Janeiro
Period08/7/2708/8/1

Keywords

  • Integer quantum Hall states
  • Skyrmion

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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