Effects of magnetic field on shape evolution of Fe–Co particles in a Cu matrix

Autor:	Masaharu Kato, Hideyuki Ohtsuka, C. Kanno, Susumu Onaka, Toshiyuki Fujii
Rok vydání:	2009
Předmět:	Magnetic anisotropy Condensed matter physics Magnetic moment Ferromagnetism Magnetic shape-memory alloy Chemistry Elastic energy Condensed Matter Physics Surface energy Magnetic field Strain energy
Zdroj:	Philosophical Magazine. 89:747-759
ISSN:	1478-6443 1478-6435
DOI:	10.1080/14786430902748300
Popis:	The effects of magnetic field on the shape evolution of ferromagnetic fcc Fe–Co particles in Cu–0.83 at.% Fe–1.37 at.% Co alloy single crystals were examined using magnetic anisotropy measurements. The Cu–Fe–Co single crystals were aged at 993 K for 2 h to 24 h under a magnetic field of 10 T parallel to either the [001] or [011] direction. The magnetic anisotropy was examined by measuring magnetic torque around the (100) plane. It was found that the fcc Fe–Co particles are elongated in the direction parallel to the magnetic field. Furthermore, the elongation along [001] is more remarkable than that along [011]. The results are explained quantitatively by considering the minimization of the sum of the interface energy, elastic strain energy and magnetostatic energy of spheroidal particles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5228143c52d930928246fbdcc2ac165a https://doi.org/10.1080/14786430902748300 Zobrazit plný text záznamu