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On certain divergences in the quantum spin wave theory of ferromagnetism

โœ Scribed by Szaniecki, J


Book ID
120336688
Publisher
Institute of Physics
Year
1974
Tongue
English
Weight
520 KB
Volume
7
Category
Article
ISSN
0022-3719

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We investigate a squeezed thermal spin state of nonlinear spin waves in Heisenberg ferromagnets. In this state, the magnon system possesses a new kind of quasiparticle, the dressed magnon, whose mass is a monotonically decreasing function of temperature. The noise of one spin component in the squeez