Browsing by Author "Kyrychenko, F. V."
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Enhanced carrier scattering rates in dilute magnetic semiconductors with correlated impurities
Kyrychenko, F. V.; Ullrich, Carsten A. (American Physical Society, 200701)In IIIV dilute magnetic semiconductors such as Ga1−xMnxAs, the impurity positions tend to be correlated, which can drastically affect the electronic transport properties of these materials. Within the memory function ... 
Intersubband spinorbit coupling and spin splitting in symmetric quantum wells
Kyrychenko, F. V.; Ullrich, Carsten A.; D'Amico, Irene (arXiv, 200710)In semiconductors with inversion asymmetry, spinorbit coupling gives rise to the wellknown Dresselhaus and Rashba effects. If one considers quantum wells with two or more conduction subbands, an additional, intersubbandinduced ... 
Memory function formalism approach to electrical conductivity and optical response of dilute magnetic semiconductors
Kyrychenko, F. V.; Ullrich, Carsten A. (arXiv, 200704)A combination of the memory function formalism and timedependent densityfunctional theory is applied to transport in dilute magnetic semiconductors. The approach considers spin and charge disorder and electronelectron ... 
Response properties of IIIV dilute magnetic semiconductors: interplay of disorder, dynamical electronelectron interactions and bandstructure effects
Kyrychenko, F. V.; Ullrich, Carsten A. (arXiv, 201101)A theory of the electronic response in spin and charge disordered media is developed with the particular aim to describe IIIV dilute magnetic semiconductors like GaMnAs. The theory combines a detailed k.p description of ... 
Temperaturedependent resistivity of ferromagnetic Ga1‑xMnxAs : Interplay between impurity scattering and manybody effects
Kyrychenko, F. V.; Ullrich, Carsten A. (American Physical Society, 200911)The static conductivity of the diluted magnetic semiconductor Ga1−xMnxAs is calculated using an equation of motion approach for the current response combined with timedependent densityfunctional theory to account for ... 
Transport and optical conductivity in dilute magnetic semiconductors
Kyrychenko, F. V.; Ullrich, Carsten A. (Institute of Physics, 200901)A theory of transport in spin and charge disordered media is developed, with a particular emphasis on dilute magnetic semiconductors. The approach is based on the equation of motion for the currentcurrent response function ...