This title appears in the Scientific Report :
2008
Please use the identifier:
http://dx.doi.org/10.1021/nl8014389 in citations.
Flux Quantisation Effects in InN Nanowires
Flux Quantisation Effects in InN Nanowires
InN nanowires, grown by plasma-enhanced molecular beam epitaxy, were investigated by means of magnetotransport. By performing temperature-dependent transport measurements and current measurements on a large number of nanowires of different dimensions, it is proven that the carrier transport mainly t...
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Personal Name(s): | Richter, T. |
---|---|
Blömers, C. / Lüth, H. / Calarco, R. / Indlekofer, M. / Marso, M. / Schäpers, T. | |
Contributing Institute: |
Halbleiter-Nanoelektronik; IBN-1 JARA-FIT; JARA-FIT |
Published in: | Nano letters, 8 (2008) S. 2834 - 2838 |
Imprint: |
Washington, DC
ACS Publ.
2008
|
Physical Description: |
2834 - 2838 |
DOI: |
10.1021/nl8014389 |
PubMed ID: |
18712932 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Nano Letters
8 |
Subject (ZB): | |
Publikationsportal JuSER |
InN nanowires, grown by plasma-enhanced molecular beam epitaxy, were investigated by means of magnetotransport. By performing temperature-dependent transport measurements and current measurements on a large number of nanowires of different dimensions, it is proven that the carrier transport mainly takes place in a tube-like surface electron gas. Measurements on three representative nanowires under an axially oriented magnetic field revealed pronounced magnetoconductance oscillations with a periodicity corresponding to a single magnetic flux quantum. The periodicity is explained by the effect of the magnetic flux penetrating the coherent circular quantum states in the InN nanowires, rather than by Aharonov-Bohm type interferences. The occurrence of the single magnetic flux quantum periodicity is attributed to the magnetic flux dependence of phase-coherent circular states with different angular momentum quantum numbers forming the one-dimensional transport channels. These phase coherent states can exist because of the almost ideal crystalline properties of the InN nanowires prepared by self-assembled growth. |