Many particle interaction in tunneling spectroscopy of impurity states on the InAs(110) surface
P. I. Arseev, N. S. Maslova+, V. I. Panov+, S. V. Savinov+, C. Van Haesendock*
Lebedev Physical Institute RAS, 117924 Moscow, Russia
+Department of Physics, Moscow State University, 119899 Moscow, Russia
*Laboratorium voor Vaste-Stof Fysica en Magnetisme, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium
PACS: 73.20.-r, 73.40.Gk
Abstract
We report on the direct observation by low temperature scanning
tunneling microscopy and scanning tunneling spectroscopy of the d-orbitals
of a Mn p-type impurity appearing on a cleaved InAs(llO) surface. We show
that the crucial interplay between non-equilibrium charging effects and many
particle interaction leading to Coulomb singularities provides a consistent
description of the experimental results.