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Disorder by design: A data-driven approach to amorphous semiconductors without total-energy functionals
Dil K. Limbu, Stephen R. Elliott, Raymond Atta-Fynn +1
This paper addresses a difficult inverse problem that involves the reconstruction of a three-dimensional model of tetrahedral amorphous semiconductors via inversion of diffraction…
Small-angle X-ray scattering in amorphous silicon: A computational study
Durga Paudel, Raymond Atta-Fynn, David A. Drabold +2
We present a computational study of small-angle X-ray scattering (SAXS) in amorphous silicon (-Si) with particular emphasis on the morphology and microstructure of voids. The re…
Atomic-charge distribution in glasses by terahertz spectroscopy
S. N. Taraskin, S. I. Simdyankin, S. R. Elliott
It is demonstrated that the width of the uncorrelated atomic-charge distribution in glasses can be extracted from the frequency dependence of the coupling coefficient for the far-i…
Universal Features of Terahertz Absorption in Disordered Materials
S. N. Taraskin, S. I. Simdyankin, S. R. Elliott +2
Using an analytical theory, experimental terahertz time-domain spectroscopy data and numerical evidence, we demonstrate that the frequency dependence of the absorption coupling coe…
Influence of copper on the electronic properties of amorphous chalcogenides
S. I. Simdyankin, M. Elstner, T. A. Niehaus +2
We have studied the influence of alloying copper with amorphous arsenic sulfide on the electronic properties of this material. In our computer-generated models, copper is found in…