Spatial structure of an individual Mn acceptor in GaAs

A. M Yakunin; A. Yu Silov; P. M Koenraad; J. H Wolter; W Van Roy; J De Boeck; J. -M Tang; M. E Flatte

doi:10.1103/PhysRevLett.92.216806

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Spatial structure of an individual Mn acceptor in GaAs

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Spatial structure of an individual Mn acceptor in GaAs

A. M Yakunin, A. Yu Silov, P. M Koenraad, J. H Wolter, W Van Roy, J De Boeck, J. -M Tang and M. E Flatte

Physical review letters, Vol.92(21), 216806

05/28/2004

DOI: 10.1103/PhysRevLett.92.216806

PMID: 15245308

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Abstract

The wave function of a hole bound to an individual Mn acceptor in GaAs is spatially mapped by scanning tunneling microscopy at room temperature and an anisotropic, cross-like shape is observed. The spatial structure is compared with that from an envelope-function, effective mass model, and from a tight-binding model. This demonstrates that anisotropy arising from the cubic symmetry of the GaAs crystal produces the cross-like shape for the hole wave-function. Thus the coupling between Mn dopants in GaMnAs mediated by such holes will be highly anisotropic.

Physics - Materials Science

Details

Title: Subtitle: Spatial structure of an individual Mn acceptor in GaAs
Creators: A. M Yakunin - Eindhoven University of Technology
A. Yu Silov - Eindhoven University of Technology
P. M Koenraad - Eindhoven University of Technology
J. H Wolter - Eindhoven University of Technology
W Van Roy - IMEC
J De Boeck - IMEC
J. -M Tang - University of Iowa
M. E Flatte - University of Iowa
Resource Type: Journal article
Publication Details: Physical review letters, Vol.92(21), 216806
DOI: 10.1103/PhysRevLett.92.216806
PMID: 15245308
NLM abbreviation: Phys Rev Lett
ISSN: 0031-9007
eISSN: 1079-7114
Language: English
Date published: 05/28/2004
Academic Unit: Electrical and Computer Engineering; Physics and Astronomy
Record Identifier: 9984428795602771

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