Spin Wave Frequency and Critical Dynamics of Ferromagnets Below T_C

Details Spin Wave Frequency and Critical Dynamics of Ferromagnets Below T_C Spin Wave Frequency and Critical Dynamics of Ferromagnets Below T_C

1994-10-19

arxiv.org/abs/cond-mat/9410073v1

Physics

Condensed Matter

6 pages, revtex 3.0, 1 figure appended as postscript figure

Scientific paper

10.1016/0304-8853(94)01374-8

Employing mode-coupling theory we show that the amplitude of the spin wave
frequency scaling function for the isotropic Heisenberg Hamiltonian is
universal. Theoretical and experimental values for Fe, Ni, Co, EuO, and EuS
agree quite well. Recent measurements of the longitudinal line width in Ni are
explained quantitatively.

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