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The Warm Electron Coefficient in n‐InSb in the Presence of a Quantizing Magnetic Field at Low Temperatures
Author(s) -
Santra K.,
Sarkar C. K.
Publication year - 1993
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221760219
Subject(s) - electron , equipartition theorem , condensed matter physics , magnetic field , physics , landau quantization , field (mathematics) , phonon , atomic physics , quantum mechanics , mathematics , pure mathematics
The warm electron coefficient (β) in n‐InSb in the presence of a quantizing magnetic field at low temperature is investigated theoretically to interpret the experimental results in n‐InSb at T L = 4.2K. The theoretical model used for the calculation of β considers the displaced Maxwellian distribution for electrons and other complexities such as the band nonparabolicity, the non‐equipartition of phonons, the free‐carrier screening, and the Landau‐level broadening. The theoretical results of β obtained by the above model are found to agree qualitatively with the experimental results taking the standard material parameters of n‐InSb. To fit the theoretical values of β with the experimental values, the acoustic deformation potential constant ( E 1 ) is found to be 13 eV which agrees with other observations.