Effect of annealing temperature on coercivity of amorphous FeSiBNb films

Autor:	Yuuki Takeuchi, Shuhei Nozue, Mutsuko Jimbo, Yuji Fujiwara, Tomoya Uwabe
Rok vydání:	2021
Předmět:	Condensed Matter::Materials Science Magnetic anisotropy Materials science Condensed matter physics Substrate (electronics) Sputter deposition Coercivity Condensed Matter Physics Anisotropy Homogenization (chemistry) Electronic Optical and Magnetic Materials Amorphous solid Annealing (glass)
Zdroj:	Journal of Magnetism and Magnetic Materials. 540:168410
ISSN:	0304-8853
DOI:	10.1016/j.jmmm.2021.168410
Popis:	Amorphous FeSiBNb films with various Nb content were prepared via DC magnetron sputtering, and the effect of the annealing temperature on the magnetic properties of the films was investigated. The as-deposited samples exhibited an in-plane magnetic anisotropy and a large coercivity. Annealing at a certain temperature resulted in the decrease of the coercivity to the minimum value indicating the homogenization of the internal stress distribution. Also, the in-plane magnetic anisotropy almost disappeared due to the isotropic-tensile stress induced by the difference in the linear expansion coefficient between the substrate and the film. The in-plane anisotropy also disappeared after annealing. It is inferred that the addition of Nb raises the crystallization temperature and lowers the minimum coercivity of the film.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::701e8c2d88ac76d2377d7d3f82484197 https://doi.org/10.1016/j.jmmm.2021.168410 Zobrazit plný text záznamu Full Text from ScienceDirect