Effect of particle size on the magnetization process in lithographic arrays of Nd2Fe14B

Autor:	Hitoshi Kubota, Hiroaki Kato, Yasuo Ando, Terunobu Miyazaki, Takayuki Ikari
Jazyk:	angličtina
Rok vydání:	2000
Předmět:	Materials science business.industry Metallurgy General Physics and Astronomy Coercivity law.invention Magnetization Sputtering law Optoelectronics Dry etching Particle size Photolithography business Lithography Electron-beam lithography
Zdroj:	Journal of Applied Physics. 87(9):6325-6327
ISSN:	0021-8979
Popis:	Controlled arrays of Nd2Fe14B were fabricated via sputtering and lithography. The arrays were fabricated via optical and electron-beam lithography combined with dry etching technique. Designed particle size varies from 10 μm×10 μm to 0.5 μm×0.5 μm. We found an increase in the coercive field with decreasing particle size. Results of the micromagnetic calculations suggest that the coercive-field increase in smaller-sized particles is originated from the effective decrease in the exchange-coupling energy owing to the relative increase in the fraction of surface grain.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6712582be1c16e3965bb2ed2bf0232bc http://hdl.handle.net/10097/35840 Zobrazit plný text záznamu