Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 99-101 |
| Seitenumfang | 3 |
| Fachzeitschrift | Surface science |
| Jahrgang | 361-362 |
| Publikationsstatus | Veröffentlicht - 20 Juli 1996 |
| Extern publiziert | Ja |
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.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Physik und Astronomie (insg.)
- Oberflächen und Grenzflächen
- Werkstoffwissenschaften (insg.)
- Oberflächen, Beschichtungen und Folien
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: Surface science, Jahrgang 361-362, 20.07.1996, S. 99-101.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › 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 -