Investigation of the thermal remagnetization in sintered hard magnets

Authors
Jahn, L Schumann, R Ivanov, V
Citation
L. Jahn et al., Investigation of the thermal remagnetization in sintered hard magnets, IEEE MAGNET, 37(4), 2001, pp. 2506-2508
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
37
Issue
4
Year of publication
2001
Part
1
Pages
2506 - 2508
Database
ISI
SICI code
0018-9464(200107)37:4<2506:IOTTRI>2.0.ZU;2-T
Abstract
The maximum thermal remagnetization (TR) after de-demagnetization was studi ed at sintered RE/T hard magnets and at barium ferrite. We found very large TR-effects for SmCo5, large effects for hard ferrites, medium for NdFeB an d a very low effect for Sm2Co17 magnets. The experimental results are inter preted on the basis of a theory taking into account the local fluctuations of the internal magnetic field as well as the internal demagnetization effe cts. The relevant model parameters were estimated for SmCo5 and barium ferr ite.