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Giant spin splitting induced by exchange interactions in Hg 1−k Mn k Te mixed crystals
Author(s) -
Bastard G.,
Rigaux C.,
Mycielski A.
Publication year - 1977
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.2220790223
Subject(s) - condensed matter physics , electron , spin (aerodynamics) , exchange interaction , physics , spectral line , chemistry , ferromagnetism , quantum mechanics , thermodynamics
T 6 → T 8 , magnetoabsorption spectra of semimetallic Hg 1−k Mn k Te alloys ( k ≦ 2%) provide evidence of striking modifications in the “spin” states of the T 8 Landau levels, in particular a drastic increase of the electronic Lande factor is observed. These anomalous spin effects are interpreted as the manifestation of the exchange interactions between the mobile electrons and the d electrons localized on the Mn atoms. The exchange integral for T 8 levels is estimated.