MAGNETIC PHASE-TRANSITIONS AND MICROWAVE-ABSORPTION IN RARE-EARTH-IRON GARNET

Authors
LAGUTIN AS SAFONOV VL
Citation
As. Lagutin et Vl. Safonov, MAGNETIC PHASE-TRANSITIONS AND MICROWAVE-ABSORPTION IN RARE-EARTH-IRON GARNET, Journal of magnetism and magnetic materials, 171(3), 1997, pp. 336-340
Citations number
7
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
171
Issue
3
Year of publication
1997
Pages
336 - 340
Database
ISI
SICI code
0304-8853(1997)171:3<336:MPAMIR>2.0.ZU;2-M
Abstract
A microscopic theoretical model is considered to explain the dynamic p roperties of magnetic system of Ho0.4Y2.6Fe5O12 The model hamiltonian contains the exchange interaction between the iron spins, the antiferr omagnetic exchange interaction between the iron spins and the rare-ear th Ising spins and the Zeeman energy. The experimentally observed anom alies of magnetic resonance are found to appear due to strong fluctuat ions of the rare-earth Ising spins and their maximal spin-lattice rela xation in the vicinity of magnetic phase transition.