TY  - JOUR
AU  - Haas, Fabian
AU  - Wenz, Tobias
AU  - Zellekens, Patrick
AU  - Demarina, Nataliya
AU  - Rieger, Torsten
AU  - Lepsa, Mihail Ion
AU  - Grützmacher, Detlev
AU  - Lüth, Hans
AU  - Schäpers, Thomas
TI  - Angle-dependent magnetotransport in GaAs/InAs core/shell nanowires
JO  - Scientific reports
VL  - 6
SN  - 2045-2322
CY  - London
PB  - Nature Publishing Group
M1  - FZJ-2016-02530
SP  - 24573 -
PY  - 2016
AB  - We study the impact of the direction of magnetic flux on the electron motion in GaAs/InAs core/shell nanowires. At small tilt angles, when the magnetic field is aligned nearly parallel to the nanowire axis, we observe Aharonov–Bohm type h/e flux periodic magnetoconductance oscillations. These are attributed to transport via angular momentum states, formed by electron waves within the InAs shell. With increasing tilt of the nanowire in the magnetic field, the flux periodic magnetoconductance oscillations disappear. Universal conductance fluctuations are observed for all tilt angles, however with increasing amplitudes for large tilt angles. We record this evolution of the electron propagation from a circling motion around the core to a diffusive transport through scattering loops and give explanations for the observed different transport regimes separated by the magnetic field orientation.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000374380100001
C6  - pmid:27091000
DO  - DOI:10.1038/srep24573
UR  - https://juser.fz-juelich.de/record/809306
ER  -