Séminaire Lotharingien de Combinatoire, B26e (1991), 7
pp.
[Formerly: Publ. I.R.M.A. Strasbourg, 1992, 476/S-26, p.
55-62.]
B. Lulek
Impurities in the Heisenberg Magnet and the General Recipe of Weyl
Abstract.
The general recipe of Weyl is applied to the Heisenberg model of a
one-dimensional magnetic chain with impurities. It is found that impurities
break the obvious translational symmetry, but preserve the hidden one.
Rarefied bands emerge from irregular orbits of action of the translation
group.
University of Pedagogy, Rzeszow, Poland
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