140 citations · 163 across the 7 of their papers we have counts for
7 papers
Phonon driven transport in amorphous semiconductors: Transition probabilities
Ming-Liang Zhang, D. A. Drabold
Inspired by Holstein's work on small polaron hopping, the evolution equations of localized states and extended states in presence of atomic vibrations are derived for an amorphous…
An extension of the Kubo-Greenwood formula for use in molecular simulations
Ming-Liang Zhang, D. A. Drabold
We discuss the foundations and extend the range of applicability of the widely used Kubo-Greenwood formula (KGF) for the electronic conductivity. The conductivity is derived from t…
Ab initio determination of ion-traps in silver-doped chalcogenide glass
I. Chaudhuri, F. Inam, D. A. Drabold
We present a microscopic picture of silver dynamics in GeSe:Ag glass obtained from {\it ab initio} simulation. The dynamics of Ag is explored at two temperatures, 300K and 70…
Electronic Signature of the Intermediate Phase in Ge_xSe_{1-x} Glasses: A Joint Theoretical and Experimental Study
F. Inam, G. Chen, D. N. Tafen +1
Raman and calorimetric studies on Ge_xSe_{1-x} glasses have provided evidence for the existence of the intermediate phase (IP) in chalcogenide and other glasses. Here, we present X…
A semi-quantitative scattering theory of amorphous materials
M. -L. Zhang, Y. Pan, F. Inam +1
It is argued that topological disorder in amorphous solids can be described by local strains related to local reference crystals and local rotations. An intuitive localization crit…
Atomistic Origin of Urbach Tails in Amorphous Silicon
Y. Pan, F. Inam, M. Zhang +1
Exponential band edges have been observed in a variety of materials, both crystalline and amorphous. In this paper, we infer the structural origins of these tails in amorphous and…