Details
| Original language | English |
|---|---|
| Pages (from-to) | 99-101 |
| Number of pages | 3 |
| Journal | Surface science |
| Volume | 361-362 |
| Publication status | Published - 20 Jul 1996 |
| Externally published | Yes |
Abstract
Sweeping the magnetic field at low temperatures can result in metastable states of the system of two-dimensional electrons in GaAs/AlGaAs. These non-equilibrium states are stable in the range of filling factors 1/3<ν<1, but can be changed by an extremely small variation of magnetic field around ν=1. We used this phenomenon to vary the disorder and to study its influence on the electronic properties of two-dimensional electrons in the vicinity of ν=1/2. The temperature dependence of σxx at ν=1/2 was analyzed, and logarithmic corrections to conductivity were found.
Keywords
- Conductivity, Gallium arsenide, Heterojunctions, Magnetic phenomena, Many body and quasi-particle theories, Molecular beam epitaxy, Semiconductor-semiconductor heterostructures
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Materials Science(all)
- Surfaces, Coatings and Films
- Materials Science(all)
- Materials Chemistry
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In: Surface science, Vol. 361-362, 20.07.1996, p. 99-101.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Influence of scattering processes on the electronic properties of composite fermions
AU - Kukushkin, I. V.
AU - Haug, R. J.
AU - Von Klitzing, K.
AU - Eberl, K.
PY - 1996/7/20
Y1 - 1996/7/20
N2 - Sweeping the magnetic field at low temperatures can result in metastable states of the system of two-dimensional electrons in GaAs/AlGaAs. These non-equilibrium states are stable in the range of filling factors 1/3<ν<1, but can be changed by an extremely small variation of magnetic field around ν=1. We used this phenomenon to vary the disorder and to study its influence on the electronic properties of two-dimensional electrons in the vicinity of ν=1/2. The temperature dependence of σxx at ν=1/2 was analyzed, and logarithmic corrections to conductivity were found.
AB - Sweeping the magnetic field at low temperatures can result in metastable states of the system of two-dimensional electrons in GaAs/AlGaAs. These non-equilibrium states are stable in the range of filling factors 1/3<ν<1, but can be changed by an extremely small variation of magnetic field around ν=1. We used this phenomenon to vary the disorder and to study its influence on the electronic properties of two-dimensional electrons in the vicinity of ν=1/2. The temperature dependence of σxx at ν=1/2 was analyzed, and logarithmic corrections to conductivity were found.
KW - Conductivity
KW - Gallium arsenide
KW - Heterojunctions
KW - Magnetic phenomena
KW - Many body and quasi-particle theories
KW - Molecular beam epitaxy
KW - Semiconductor-semiconductor heterostructures
UR - http://www.scopus.com/inward/record.url?scp=0030189510&partnerID=8YFLogxK
U2 - 10.1016/0039-6028(96)00340-8
DO - 10.1016/0039-6028(96)00340-8
M3 - Article
AN - SCOPUS:0030189510
VL - 361-362
SP - 99
EP - 101
JO - Surface science
JF - Surface science
SN - 0039-6028
ER -