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Quasiballistic quantum transport through Ge/Si core/shell nanowires.
Kotekar-Patil, D; Nguyen, B-M; Yoo, J; Dayeh, S A; Frolov, S M.
Affiliation
  • Kotekar-Patil D; Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, United States of America.
Nanotechnology ; 28(38): 385204, 2017 Sep 20.
Article in En | MEDLINE | ID: mdl-28703121
We study signatures of ballistic quantum transport of holes through Ge/Si core/shell nanowires at low temperatures. We observe Fabry-Pérot interference patterns as well as conductance plateaus at integer multiples of 2e 2/h at zero magnetic field. Magnetic field evolution of these plateaus reveals relatively large effective Landé g-factors. Ballistic effects are observed in nanowires with silicon shell thickness of 1-3 nm, but not in bare germanium wires. These findings inform the future development of spin and topological quantum devices which rely on ballistic sub-band-resolved transport.

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nanotechnology Year: 2017 Document type: Article

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nanotechnology Year: 2017 Document type: Article