TY  - JOUR
AU  - Kammermeier, Michael
AU  - Wenk, Paul
AU  - Schliemann, John
AU  - Heedt, Sebastian
AU  - Schäpers, Thomas
TI  - Weak (anti)localization in tubular semiconductor nanowires with spin-orbit coupling
JO  - Physical review / B
VL  - 93
IS  - 20
SN  - 2469-9950
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2016-04069
SP  - 205306
PY  - 2016
AB  - We compute analytically the weak (anti)localization correction to the Drude conductivity for electrons in tubular semiconductor systems of zinc-blende type. We include linear Rashba and Dresselhaus spin-orbit coupling (SOC) and compare wires of standard growth directions ⟨100⟩,⟨111⟩, and ⟨110⟩. The motion on the quasi-two-dimensional surface is considered diffusive in both directions: transversal as well as along the cylinder axis. It is shown that Dresselhaus and Rashba SOC similarly affect the spin relaxation rates. For the ⟨110⟩ growth direction, the long-lived spin states are of helical nature. We detect a crossover from weak localization to weak antilocalization depending on spin-orbit coupling strength as well as dephasing and scattering rate. The theory is fitted to experimental data of an undoped ⟨111⟩ InAs nanowire device which exhibits a top-gate-controlled crossover from positive to negative magnetoconductivity. Thereby, we extract transport parameters where we quantify the distinct types of SOC individually.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000376251800002
DO  - DOI:10.1103/PhysRevB.93.205306
UR  - https://juser.fz-juelich.de/record/811685
ER  -