Premium
Influence of Magnetic Quantization on the Effective Electron Mass in Ternary Semiconductors
Author(s) -
Mondal M.,
Ghatak K. P.
Publication year - 1985
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.2221290235
Subject(s) - effective mass (spring–mass system) , ternary operation , degenerate energy levels , condensed matter physics , semiconductor , electron , magnetic field , physics , band gap , amplitude , mass ratio , degenerate semiconductor , fermi level , ternary alloy , materials science , quantum mechanics , astrophysics , computer science , programming language
An attempt is made to study the effect of a quantizing magnetic field on the effective mass in degenerate n‐type ternary semiconductors at low temperatures taking n‐Hg 1− x Cd x Te as an example. It is found on the basis of the three‐band Kane model, which is the most valid model for n‐Hg 1− x Cd x Te, that the effective electron mass at the Fermi level shows an oscillatory magnetic field dependence as expected since the origin of the oscillations in the effective mass in small gap semiconductors is the same as that of the Shubnikov‐de Hass oscillations. Besides, the amplitude of oscillations is significantly influenced by the alloy composition whereas the period is found to be independent of the compositional parameters in ternary semiconductors. The corresponding results for parabolic energy bands are also obtained from the expressions derived.