Low-field magnetoresistance ofn-type GaAs in the variable-range hopping regime
- 15 November 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 38 (15), 10933-10936
- https://doi.org/10.1103/physrevb.38.10933
Abstract
Low-T magnetotransport data on epitaxial n-type GaAs, in the variable-range hopping regime, are presented with emphasis on negative-magnetoresistance effects at low magnetic fields. A minimum in the variation of the magnetoresistance as a function of the magnetic field is observed. The negative part of the magnetoresistance is in good agreement with a model which accounts for the Zeeman splitting of the localized energy levels. A weak dependence of the characteristic temperature of Mott’s law on the magnetic field is observed.Keywords
This publication has 22 references indexed in Scilit:
- High-resolution data-acquisition system for high impedance measurements on semiconductorsReview of Scientific Instruments, 1987
- Magnetic freeze-out in doped semiconductors the metal non-metal transition in n-type InSbPhilosophical Magazine Part B, 1980
- Theory of Negative Magnetoresistance I. Application to Heavily Doped SemiconductorsJournal of the Physics Society Japan, 1980
- Magnetoresistance and Hall effect in n-type indium antimonide in the magnetic freeze-out regionJournal of Physics C: Solid State Physics, 1978
- The degenerate electron gas in tungsten bronzes and in highly doped siliconPhilosophical Magazine, 1977
- Influence of an enlargement of the model space on number projected quasiparticle calculationsThe European Physical Journal A, 1976
- Magnetoresistance of Undoped-Type Gallium Arsenide at Low TemperaturesPhysical Review B, 1968
- Mobility of Electrons in Compensated Semiconductors. II. TheoryPhysical Review B, 1967
- Negative Magnetoresistance in Impurity ConductionPhysical Review B, 1964
- Theory of Localized Spins and Negative Magnetoresistance in the Metallic Impurity ConductionJournal of the Physics Society Japan, 1962