Temperature Dependence of the Band-Edge Effective Mass in n-InAs Deduced from Magnetophonon Resonance
- 1 July 1981
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 20 (7)
- https://doi.org/10.1143/jjap.20.1265
Abstract
Magnetophonon measurements have been carried out in bulk n-InAs using magnetic field modulation technique to obtain the temperature dependence of the band edge effective mass. Resonance extrema forN=2, 3 and 4 were observed in the transverse magnetoresistance in the temperature range from 150 to 250 K and the effective masses were deduced taking into account the conduction band non-parabolicity and the polaron effect. The masses are 0.0231±0.005mat 150 K and 0.0219±0.005mat 250 K. The observed temperature dependence of the mass is discussed using Kane's formula for the nonparabolic conduction band and the momentum matrix element is determined to beP2=19–21 in units of eV.Keywords
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