J. Tersoff
Applied Surface Science
Scanning tunneling spectroscopy is used to study p-type Ge(111)c(2X8) surfaces at temperatures between 7 and 61 K and over a wide range of tunnel currents. The spectral feature arising from Ge rest atoms is found to shift in voltage with increasing tunnel current. A comparison of the current dependence of the results with electrostatic computations of tip-induced band bending yields poor agreement. A model is discussed in which the observed shift in the rest-atom state arises from an accumulation of nonequilibrium carriers at the surface.
J. Tersoff
Applied Surface Science
R. Ghez, M.B. Small
JES
Revanth Kodoru, Atanu Saha, et al.
arXiv
Ronald Troutman
Synthetic Metals