Galvanomagnetic Properties of n-Type InSb at Low Temperatures : II. Magnetic Field-Induced Metal-Nonmetal Transition
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概要
- 論文の詳細を見る
Experinvental evidence for the magnetic field-induced metal-nonmetal transitionin n -InSb has been obtained, under the magnetic fields up to 13.3 k0e, by system-atically investigating'the Flail coefficient and the transverse magnetoresistivity forthe samples containing 2x]0" -4x]0"cm ' of donors with nearly fixedcom.pensation ratio I( -0.5 at liqtmid helium temperatures. The donor concentra-Lion dependence of the critical magnetic field strength at the transition satisfac-torily agrees with the theoretieal prediction on the impurity band. The observedminimum naetallic conductivity proves practically insensitive to magnetic fieldand increases with increasing density of localized centers, in accord with Mott'sconcept of the metal-nonmetal transition in doped semiconductors.
- 社団法人日本物理学会の論文
- 1977-07-15
著者
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Otsuka Eizo
Department of Applied Physics, Osaka University
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Ishida Shuichi
Department Of Physics Faculty Of Science Osaka University
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Otsuka Eizo
Department Of Applied Physics Osaka City University
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