This title appears in the Scientific Report :
2014
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.89.045417 in citations.
Please use the identifier: http://hdl.handle.net/2128/5882 in citations.
Flux periodic magnetoconductance oscillations in GaAs/InAs core/shell nanowires
Flux periodic magnetoconductance oscillations in GaAs/InAs core/shell nanowires
Magnetotransport experiments on epitaxial GaAs/InAs core/shell nanowires are performed in which the InAs shell forms a tube-like conductive channel around the highly resistive GaAs core. The core/shell nanowires are grown by molecular beam epitaxy. It is found that the nanowire conductance oscillate...
Saved in:
Personal Name(s): | Gül, Önder |
---|---|
Demarina, Nataliya / Blömers, C. / Rieger, T. / Lüth, H. / Lepsa, M. I. / Grützmacher, D. / Schäpers, Th. (Corresponding author) | |
Contributing Institute: |
Halbleiter-Nanoelektronik; PGI-9 JARA-FIT; JARA-FIT |
Published in: | Physical Review B Physical review / B, 89 89 (2014 2014) 4 4, S. 045417 045417 |
Imprint: |
College Park, Md.
APS
2014
|
DOI: |
10.1103/PhysRevB.89.045417 |
Document Type: |
Journal Article |
Research Program: |
Frontiers of charge based Electronics |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/5882 in citations.
Magnetotransport experiments on epitaxial GaAs/InAs core/shell nanowires are performed in which the InAs shell forms a tube-like conductive channel around the highly resistive GaAs core. The core/shell nanowires are grown by molecular beam epitaxy. It is found that the nanowire conductance oscillates with the magnetic field oriented parallel to its axis, with a period of the magnetic flux quantum ϕ0=h/e. Related to that, it is shown that the electronic transport is mediated by closed loop quantum states encircling the wire axis rather than by electron interference of partial waves. By means of a gate voltage the conductance at zero magnetic field can be changed between an oscillation minimum and maximum. The experimental findings are supported by numerical calculations. |