Local Electronic Structure near Mn Acceptors in InAs: Surface-Induced Symmetry Breaking and Coupling to Host States

F. Marczinowski, J. Wiebe, J.-M. Tang, M. E. Flatté, F. Meier, M. Morgenstern, and R. Wiesendanger
Phys. Rev. Lett. 99, 157202 – Published 9 October 2007

Abstract

We present low-temperature scanning tunneling spectroscopy measurements on Mn acceptors in InAs in comparison with tight-binding calculations. We find a strong (001)-mirror asymmetry of the bound hole wave function close to the (110) surface. In addition, multiple acceptor-related peaks are observed and are attributed to a spin-orbit splitting of the acceptor level. Because of the pd exchange interaction the local density of states near the acceptors is enhanced in the valence band and suppressed in the conduction band. We also observe signs of anisotropic scattering of the conduction band states by neutral acceptors.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 25 April 2007

DOI:https://doi.org/10.1103/PhysRevLett.99.157202

©2007 American Physical Society

Authors & Affiliations

F. Marczinowski1, J. Wiebe1,*, J.-M. Tang2,†, M. E. Flatté2, F. Meier1, M. Morgenstern3, and R. Wiesendanger1

  • 1Institute of Applied Physics, Hamburg University, Jungiusstrasse 11, D-20355 Hamburg, Germany‡
  • 2Optical Science and Technology Center and Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242, USA
  • 3II. Institute of Physics B, RWTH Aachen University, Physikzentrum Melaten, Otto-Blumenthal-Strasse, D-52056 Aachen, Germany

  • *Corresponding author. jwiebe@physnet.uni-hamburg.de
  • Present address: Department of Physics, University of New Hampshire, Durham, NH 03824, USA.
  • http://www.nanoscience.de/group_r/

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 99, Iss. 15 — 12 October 2007

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×