STRUCTURE AND MAGNETIC-PROPERTIES OF NANOCRYSTALLINE FERROMAGNETS .2.MAGNETOELASTIC COUPLING EFFECTS

Authors
LIU T XU ZX ZHAO ZT MA RZ HU TD XIE YN GUO YH
Citation
T. Liu et al., STRUCTURE AND MAGNETIC-PROPERTIES OF NANOCRYSTALLINE FERROMAGNETS .2.MAGNETOELASTIC COUPLING EFFECTS, Science in China. Series A, Mathematics, Physics, Astronomy & Technological Sciences, 40(4), 1997, pp. 395-399
Citations number
12
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Science in China. Series A, Mathematics, Physics, Astronomy & Technological Sciences → ACNP
ISSN journal
10016511
Volume
40
Issue
4
Year of publication
1997
Pages
395 - 399
Database
ISI
SICI code
1001-6511(1997)40:4<395:SAMONF>2.0.ZU;2-1
Abstract
The role of magnetoelastic coupling effects in nanocrystalline ferroma gnets is investigated by means of high-field magnetization and Doppler -broadening spectrum measurements. For the nanocrystalline Fe73.5Cu1Nb 3-Si13.5B9 alloy, the results show that the pinning effects resulting from the quasidislocation dipole intensely influence the movement of d omain wall; by coupling with the magnetostriction the defects-induced stress fields determine the magnetic properties at the early stage of crystallization. In view of the effective anisotropy and magnetoelasti c coupling energy the optimal annealing conditions of alloys are discu ssed.