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High Magnetic Field Observation of the Resonance Donor States of S in InSb
Author(s) -
Porowski S.,
Konczewicz L.,
Kowalski J.,
Aulombard R. L.,
Robert J. L.
Publication year - 1981
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.2221040232
Subject(s) - condensed matter physics , electron , thermal conduction , scattering , resonance (particle physics) , hall effect , chemistry , impurity , magnetic field , atmospheric pressure , conduction band , doping , atomic physics , physics , optics , organic chemistry , quantum mechanics , meteorology , thermodynamics
Electrical transport measurements in InSb heavily doped with sulfur ( n ≈ 5 × 10 18 cm −3 ) are performed. At T = 4.2 K the Hall coefficient and transverse magnetoresistivity are measured as a function of pressure up to 2100 MPa and magnetic field up to 18 T. At the highest pressure, a decrease of the frequency and a decrease of the damping of Shubnikov‐de Haas oscillations are observed. These effects are explained as a result of the transfer of electrons from the conduction band to the resonance states of sulfur. At atmospheric pressure these states are 0.55 eV above the bottom of conduction band. In the lower pressure range, the experimental dependence of the effective Dingle temperature T D* = T D + T i can be explained by the model in which the scattering by ionized impurities and short‐range potentials are taken into account. At the highest pressures a change of inhomogeneity of carrier concentration due to the transfer of electrons to the resonance states has to be considered.