Optical mapping of properties of two-dimensional electron system in magnetic fields

Nobuaki Hayashi, Kohei Tsumura, Shintaro Nomura, Masumi Yamaguchi, Hiroyuki Tamura, Tatsushi Akazaki, Yoshiro Hirayama

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Real-space mappings of a Hall photovoltage are performed by local laser excitation using optical microscope setup with a spatial resolution of about 2 μ m. The obtained images of broad and narrow strips presumably reflect the diffusion of the optically created electrons in the bulk and the edge states. The image near a current contact is considered to reflect the potential gradient near the contact.

Original languageEnglish
Pages (from-to)1533-1535
Number of pages3
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume40
Issue number5
DOIs
Publication statusPublished - 2008 Mar 1

Keywords

  • Edge channel
  • Photocurrent

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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