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Conductance of a large point contact with Rashba effect

Ramaglia, V. ; Bercioux, D. ; Cataudella, V. ; Filippis, G. ; Perroni, C. ; Ventriglia, F.

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We study the scattering of an electron of a 2DEG through a large point contact separating a region where the electrons are free and a region where the Rashba spin-orbit coupling is present. The scattering depends dramatically on the electron incidence angle showing double refraction within the Rashba region. For incidence not normal to the interface the electron spin state is not conserved. The ...


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