Newly developed SmCo5 thin film with perpendicular magnetic anisotropy

Junichi Sayama, Toru Asahi, Kazuki Mizutani, Tetsuya Osaka

研究成果: Article

87 引用 (Scopus)

抄録

A sputter-deposited SmCo5 thin film with perpendicular magnetic anisotropy has been developed. The Sm-Co film, composed of [Co (0.41 nm)/Sm (0.31 nm)]35, was prepared by sputtering on a Cu (100 nm)/glass substrate at various substrate temperatures. The coercivity was found to increase rapidly at 325-345°C and to be much greater in the direction perpendicular to the film surface than in the film plane. By using in-plane x-ray diffractometry, reflection peaks of the Sm-Co film deposited at 325-345°C were confirmed to originate from the SmCo5 phase, and the film showed a preferred orientation of the c-axis in the direction perpendicular to the film surface. The Co/Sm laminate structure deposited on the Cu seedlayer at an appropriate substrate temperature was found to be the key to promoting crystallization of the SmCo5 with its c-axis oriented perpendicular to the film surface.

元の言語English
ジャーナルJournal of Physics D: Applied Physics
37
発行部数1
DOI
出版物ステータスPublished - 2004 1 7

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Magnetic anisotropy
Thin films
anisotropy
thin films
Substrates
Crystallization
samarium cobalt
Coercive force
laminates
Laminates
coercivity
Sputtering
sputtering
crystallization
X rays
Glass
Temperature
temperature
glass
x rays

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

これを引用

Newly developed SmCo5 thin film with perpendicular magnetic anisotropy. / Sayama, Junichi; Asahi, Toru; Mizutani, Kazuki; Osaka, Tetsuya.

:: Journal of Physics D: Applied Physics, 巻 37, 番号 1, 07.01.2004.

研究成果: Article

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