TY  - CONF
AU  - Schäpers, Thomas
AU  - Haas, Fabian
AU  - Zellekens, Patrick
AU  - Rieger, Torsten
AU  - Wenz, Tobias
AU  - Günel
AU  - Gül
AU  - Demarina, Nataliya
AU  - Lepsa, Mihail Ion
AU  - Lüth, Hans
AU  - Grützmacher, Detlev
TI  - Quantum Transport in Core/Shell Semiconductor Nanowires
M1  - FZJ-2015-01943
PY  - 2015
AB  - The transport properties of GaAs/InAs core/shell nanowires is investigated, where the highly conductive InAs shell is wrapped around an insulating GaAs core nanowire. At low temperatures pronounced flxperiodic (h/e) magnetoconductance oscillations are observed, when the magnetic fild is oriented along the nanowire axis. These very regular oscillations are explained by the formation of closed-loop quantumstates in the tube-like InAs shell comprising a flx periodic energy spectrum. The magnetoconductance oscillations are even observed at temperatures as high as 50K. When the GaAs/InAs core/shell nanowire is contacted by two superconducting Nb electrodes the carrier transport is governed by phase-coherent Andreev reflction processes. Here, the observed oscillation period in the magneto-transport corresponds to half a flx quantum (h/2e).
T2  - DPG Frühjahrstagung
CY  - 16 Mar 2015 - 20 Mar 2015, Berlin (Germany)
Y2  - 16 Mar 2015 - 20 Mar 2015
M2  - Berlin, Germany
LB  - PUB:(DE-HGF)6
UR  - https://juser.fz-juelich.de/record/188601
ER  -