Acoustically induced spin-orbit interactions revealed by two-dimensional imaging of spin transport in GaAs

H. Sanada, T. Sogawa, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta, P. V. Santos

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

Magneto-optic Kerr microscopy was employed to investigate the spin-orbit interactions of electrons traveling in semiconductor quantum wells using surface acoustic waves (SAWs). Two-dimensional images of the spin flow induced by SAWs exhibit anisotropic spin precession behaviors caused by the coexistence of different types of spin-orbit interactions. The dependence of spin-orbit effective magnetic fields on SAW intensity indicates the existence of acoustically controllable spin-orbit interactions resulting from the strain and Rashba contributions induced by the SAWs.

Original languageEnglish
Article number216602
JournalPhysical review letters
Volume106
Issue number21
DOIs
Publication statusPublished - 2011 May 26

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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