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Influence of ohmic contacts on the amplitude of Shubnikov-de Haas oscillations
- Source :
- Semiconductor Science and Technology. 7:82-85
- Publication Year :
- 1992
- Publisher :
- IOP Publishing, 1992.
-
Abstract
- The longitudinal magnetoresistance of a two- dimensional electron gas is shown to be strongly dependent on the presence of ohmic contacts between the voltage probes. By connecting or disconnecting contacts with additional gates across the potential probes it is possible to drastically change the amplitude of Shubnikov-de Haas oscillations.
- Subjects :
- Magnetoresistance
Condensed matter physics
Chemistry
ddc:530
530 Physik
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Condensed Matter Physics
72.20.My
Shubnikov–de Haas effect
73.40.Kp
Electronic, Optical and Magnetic Materials
Magnetic field
Amplitude
Materials Chemistry
Dissipative system
Condensed Matter::Strongly Correlated Electrons
Electrical and Electronic Engineering
Fermi gas
Ohmic contact
Voltage
Subjects
Details
- ISSN :
- 13616641 and 02681242
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- Semiconductor Science and Technology
- Accession number :
- edsair.doi.dedup.....c5b9def99caf19a2fe94c29beea5b9fe
- Full Text :
- https://doi.org/10.1088/0268-1242/7/1/014