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Experimental Study of the Conduction Band of GaSb
Author(s) -
Bordure G.,
Guastavino F.,
Llinares C.
Publication year - 1969
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.19690340239
Subject(s) - effective mass (spring–mass system) , thermal conduction , condensed matter physics , doping , conduction band , electron , conductivity , materials science , physics , quantum mechanics , composite material
Simultaneous Faraday rotation, reflectivity, and Hall effect measurements made on two Te doped, n‐type GaSb single crystals of various doping, have been used to determine the characteristics of the L 1 conduction band minimum as a function of the ratio K = m 1 *(L 1 )/ m t *(L 1 ). Using the theoretical value K = 13, we have obtained for the transverse effective mass of the (111) minimum electrons and for the energy separation of the L 1 and Γ 1 minima: m t *(L 1 ) = 0.12 m e and Δ E = 83 meV at 300°K with d(Δ E )/d t = 5.5 × 10 −5 eV/°K. Complementary conductivity measurements were made to obtain the mobilities of the two conduction band carriers.