The features of ballistic electron transport in a suspended quantum point contact
Creators
- 1. Rzhanov Institute of Semiconductor Physics, SB RAS, 630090 Novosibirsk (Russian Federation)
- 2. Novosibirsk State University, 630090 Novosibirsk (Russian Federation)
- 3. Tomsk State University of Control Systems and Radioelectronics, 634050 Tomsk (Russian Federation)
Description
A suspended quantum point contact and the effects of the suspension are investigated by performing identical electrical measurements on the same experimental sample before and after the suspension. In both cases, the sample demonstrates conductance quantization. However, the suspended quantum point contact shows certain features not observed before the suspension, namely, plateaus at the conductance values being non-integer multiples of the conductance quantum, including the "0.7-anomaly." These features can be attributed to the strengthening of electron-electron interaction because of the electric field confinement within the suspended membrane. Thus, the suspended quantum point contact represents a one-dimensional system with strong electron-electron interaction
Additional details
Identifiers
- DOI
- 10.1063/1.4878398;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 104
- Journal Issue
- 20
- Journal Page Range
- p. 203102-203102.5
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45094615
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ELECTRON-ELECTRON INTERACTIONS; ELECTRONS; ONE-DIMENSIONAL CALCULATIONS; QUANTUM MECHANICS
- Descriptors DEC
- ELEMENTARY PARTICLES; FERMIONS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MECHANICS; PARTICLE INTERACTIONS
Optional Information
- Notes
- (c) 2014 AIP Publishing LLC