TY - JOUR
T1 - Localization in Landau Subbands with the Landau Quantum Number 0 and 1 of Si-MOS Inversion Layers
AU - Wakabayashi, Junichi
AU - Kawaji, Shinji
AU - Goto, Takayuki
AU - Fukase, Tetsuo
AU - Koike, Yoji
PY - 1992/5
Y1 - 1992/5
N2 - Quantum transport experiments of Si-MOS inversion layers have been done at temperatures between 50 mK and 1.45 K and in magnetic fields between 14 and 23 T using samples having two grades of electron mobility. The Hall conductivity were analyzed employing a model calculation to derive the temperature dependence and the magnetic field dependence of the mobility edge. At low temperatures, the mobility edge was independent of temperature and independent of magnetic field suggesting the mobility edge is dominated by a macroscopic potential fluctuations. The temperature dependence of the mobility edge at high temperatures can not be explained by the existing theory of localization in Landau subbands in two dimensional systems and that of the temperature dependence of the inelastic scattering in the zero magnetic field.
AB - Quantum transport experiments of Si-MOS inversion layers have been done at temperatures between 50 mK and 1.45 K and in magnetic fields between 14 and 23 T using samples having two grades of electron mobility. The Hall conductivity were analyzed employing a model calculation to derive the temperature dependence and the magnetic field dependence of the mobility edge. At low temperatures, the mobility edge was independent of temperature and independent of magnetic field suggesting the mobility edge is dominated by a macroscopic potential fluctuations. The temperature dependence of the mobility edge at high temperatures can not be explained by the existing theory of localization in Landau subbands in two dimensional systems and that of the temperature dependence of the inelastic scattering in the zero magnetic field.
UR - http://www.scopus.com/inward/record.url?scp=17644407126&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=17644407126&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.61.1691
DO - 10.1143/JPSJ.61.1691
M3 - Article
AN - SCOPUS:17644407126
SN - 0031-9015
VL - 61
SP - 1691
EP - 1700
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 5
ER -