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cond-mat.mtrl-sci2007
Hindered rotators by off-site ions in solids: Optical conductivity by sombrero potentials
I. Polyanski, A. G. Andreev, V. Krastev +2
We consider the optical conductivity of carriers scattered by local sombrero potentials associated with hindered planar rotators in solids. Examples for hindered rotators are provi…
cond-mat.mtrl-sci2005
Carbon diffusion in alpha-iron: Evidence for quantum mechanical tunneling
Ludwik Dabrowski, Alexander Andreev, Mladen Georgiev
Recent experimental data on the diffusion coefficient of carbon in alpha-iron below liquid nitrogen temperature (LNT) question the classical approach to the observed temperature de…