Magnetic properties of a new family of rare-earth substituted ferrites

Autor:	Markus Müller, Günter Wiesinger, M. Kupferling, R. Grössinger, C. Tellez Blanco
Rok vydání:	2003
Předmět:	Materials science Condensed matter physics Magnet Substitution (logic) Rare earth Electrical and Electronic Engineering Coercivity Condensed Matter Physics Anisotropy Electronic Optical and Magnetic Materials Ion
Zdroj:	Physica B: Condensed Matter. 327:202-207
ISSN:	0921-4526
DOI:	10.1016/s0921-4526(02)01728-3
Popis:	The magnetic properties of substituted hard-magnetic M-type ferrites are surveyed. A combined La–Co substitution leads to magnets of compositions Ba1−xLaxFe12−xCoxO19 and Sr1−xLaxFe12−xCoxO19 (x= 0, 0.1, 0.2, 0.3, 0.4). Due to this substitution, the anisotropy as well as the coercivity increases. The effect of the ion size was studied on the system (Sr1−yCay)1−xLaxFe12−x Co0.75xFe2+0.25xO19 (x= 0.2, 0.4; y= 0, 0.33, 0.66, 1). Additionally, Sm substitution which leads to a strong increase of the coercivity was studied, but the effect on the anisotropy is small (1%).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f084990c683320220d4a06f9316a8fb5 https://doi.org/10.1016/s0921-4526(02)01728-3 Zobrazit plný text záznamu Full Text from ScienceDirect