Physics – Condensed Matter – Materials Science
Scientific paper
2004-06-06
Superlattices and Microstructures 34, 539-545 (2003)
Physics
Condensed Matter
Materials Science
Proceedings of the SIMD-4 conference. Hawaii, USA (December 1-5, 2003)
Scientific paper
10.1016/j.spmi.2004.03.055
An individual Mn acceptor in GaAs is mapped by Cross-sectional Scanning Tunneling Microscopy (X-STM) at room temperature and a strongly anisotropic shape of the acceptor state is observed. An acceptor state manifests itself as a cross-like feature which we attribute to a valence hole weakly bound to the Mn ion forming the (Mn$^{2+}3d^5+hole$) complex. We propose that the observed anisotropy of the Mn acceptor wave-function is due to the d-wave present in the acceptor ground state.
Boeck Joan de
Koenraad P. M.
Roy Willem Van
Silov Yu. A.
Wolter J. H.
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