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Rashba spin-orbit coupling effect on a diluted magnetic semiconductor cylinder surface and ballistic transport

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dc.creator ÇAKMAK, Seyfettin
dc.creator ARTUNC, E.
dc.creator MEHDIYEV, B. H.
dc.creator Babayev, Arif
dc.date 2009-09-30T21:00:00Z
dc.date.accessioned 2020-10-06T10:31:26Z
dc.date.available 2020-10-06T10:31:26Z
dc.identifier 6cc6b68b-bbf7-4ed7-906d-c19342209f76
dc.identifier 10.1016/j.spmi.2009.08.009
dc.identifier https://avesis.sdu.edu.tr/publication/details/6cc6b68b-bbf7-4ed7-906d-c19342209f76/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/62781
dc.description We have studied the Rashba spin-orbital effect on a diluted magnetic semiconductor (DMS) cylinder surface in the presence of a magnetic field parallel to the cylinder axis, taking into account the Zeeman coupling and the s-d exchange interaction between the carriers and the magnetic ions. We have obtained an analytical expression for the electron energy spectrum, which depends on the magnetic ion concentration, temperature and strength of magnetic field. The results are used to obtain the conductance of the cylinder at finite temperature. It is shown that the presence of additional local extremum points in the subbands of the electronic spectrum leads to a nonmonotonic dependence of the ballistic conductance of the system on the chemical potential and magnetic field. In the presence of anomalous Zeeman terms with taking into account the Rashba splitting, each minimum of subband contributes G(0)/2 to conductance and each local maxima in the subband, actually reduce the conductance by G(0)/2 compared with the value G(0), without the anomalous Zeeman splitting. The effect of finite temperature on the DMS cylinder conductance is a smearing out the sharp steps in the zero-temperature conductance, and shifting the peaks due to the temperature dependence of the s-d exchange interaction term. (C) 2009 Elsevier Ltd. All rights reserved.
dc.language eng
dc.rights info:eu-repo/semantics/closedAccess
dc.title Rashba spin-orbit coupling effect on a diluted magnetic semiconductor cylinder surface and ballistic transport
dc.type info:eu-repo/semantics/article


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