ISSN:
1572-9540
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Mössbauer effect spectroscopy provides an excellent probe to study domain wall dynamics in the quasi 1-d Ising-type magnetic chain. Theoretical aspects of moving domain walls (nonlinear excitations, kinks, solitons) are briefly discussed, both for quantum and classical 1-d systems. We review experimental data on Fe(N2H5)2(SO4)2, RbFeCl3·2H2O and FeCl2 (NC5H5)2. Analysis of the spectra is performed in two different ways: by extracting linewidths, and by fitting to the Blume-Tjon relaxation model, which is argued to give the exact description for the Mössbauer spectrum of a magnetic chain, subject to free-kink behaviour. Differences between this theory and experiments are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02354747
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