Spin-resolved conductance quantization in InAs
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- Erscheinungsjahr:
- 2014
- Medientyp:
- Text
- Schlagworte:
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- conductance quantization
- edge channels
- InAs heterostructures
- quantum point contact
- spin-resolved transport
- Beschreibung:
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We report on the quantized conductance through side- and top-gated InAs quantum point contacts and discuss its dependence on the temperature and on a magnetic field applied perpendicular to the sample plane. Even in the absence of a magnetic field we observe besides the integer steps in units of 2e 2/h spin-resolved steps in units of e2/h up to the highest occupied mode. A conductance anomaly at 0.7 × 2e2/h is found as well.
- We report on the quantized conductance through side- and top-gated InAs quantum point contacts and discuss its dependence on the temperature and on a magnetic field applied perpendicular to the sample plane. Even in the absence of a magnetic field we observe besides the integer steps in units of 2e 2/h spin-resolved steps in units of e2/h up to the highest occupied mode. A conductance anomaly at 0.7 × 2e2/h is found as well. © 2014 IOP Publishing Ltd.
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- info:eu-repo/semantics/closedAccess
- Quellsystem:
- Forschungsinformationssystem der UHH
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- oai:www.edit.fis.uni-hamburg.de:publications/fbd1fbf7-404a-4fd9-b47e-1cc379be284c