Dresden 2017 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 3: Transport: Quantum Dots, Quantum Wires, Point Contacts

TT 3.12: Vortrag

Montag, 20. März 2017, 12:30–12:45, HSZ 201

Spin-dependent scattering in a nanowire — •Alba Pascual¹, Vitaly N. Golovach^1,2,3, Dario Bercioux^2,3, Juan José Sáenz^2,3, and Sebastián Bergeret^1,2 — ¹Centro de Física de Materiales (CFM-MPC) Centro Mixto CSIC-UPV/EHU,E- 20018 Donostia-San Sebastián, Spain — ²2Donostia International Physics Center (DIPC), E-20018 Donostia-San Sebastián, Spain — ³IKERBASQUE, Basque Foundation of Science, E-48011 Bilbao, Spain

We study a quasi-one-dimensional quantum wire in the presence of an impurity and spin-orbit interaction. We solve the problem using a perturbative approach in order to obtain an effective Hamiltonian for the scattering problem. We solve that the scattering problem via the Lippmann-Schwinger equation at the leading order in spin-orbit. We focus on the scattering matrix of a spin-dependent transport setup and elucidate what we believe to be a suitable set of experiments aimed at a scattering matrix tomography.