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Magnetic Susceptibility of Electrons in Quantum Wires of Wide‐Gap Semiconductors
Author(s) -
Das N. R.,
Chakravarti A. N.
Publication year - 1992
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.2221720211
Subject(s) - diamagnetism , condensed matter physics , electron , semiconductor , degenerate energy levels , paramagnetism , quantum wire , magnetic field , physics , quantum , quantum mechanics
Abstract A transverse perturbing magnetic field is assumed to be applied to a rectangular quantum wire of a wide‐gap semicondutor, to determine the magnetic susceptibilities of electrons. The computations are perfomed for a low value of the temperature, taking degenerate n‐GaAs as an example of such semiconductors, It is interesting to note that, not only the paramagnetic‐to‐diamagnetic susceptibility ratio for electrons in a semiconducting quantum wire deviates from that (⅓) in conventional semiconductors, but also that there is a critical region, governed by the concentration of the electrons and the transverse dimensions of the wire within quenching of the diamagnetism occurs.