Direct observation of magnetically induced phase separation in Co-W sputtered thin films

K. Oikawa; G. W. Qln; M. Sato; S. Okamoto; O. Kitakami; Y. Shimada; K. Fukamichi; K. Ishida; T. Koyama

doi:10.1063/1.1793354

Direct observation of magnetically induced phase separation in Co-W sputtered thin films

K. Oikawa, G. W. Qln, M. Sato, S. Okamoto, O. Kitakami, Y. Shimada, K. Fukamichi, K. Ishida, T. Koyama

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

The compositional fluctuation of W developed in Cobalt-Tungsten (Co-W) films by a scanning transmission microscope was investigated. The effect of elastic energy on the phase separation behavior in the film was considered with the thermodynamic calculations. The Cromium (Cr) layer was deposited at 423 K by using a desputtering and the Co-W layer was deposited at room temperature and 573 K by an rf sputtering. It was observed that the composition dependence of of the lattice constant of the Co-W system was larger than that of Co-Cr system.

Original language	English
Pages (from-to)	2559-2561
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	13
DOIs	https://doi.org/10.1063/1.1793354
Publication status	Published - 2004 Sept 27
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1793354

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title = "Direct observation of magnetically induced phase separation in Co-W sputtered thin films",

abstract = "The compositional fluctuation of W developed in Cobalt-Tungsten (Co-W) films by a scanning transmission microscope was investigated. The effect of elastic energy on the phase separation behavior in the film was considered with the thermodynamic calculations. The Cromium (Cr) layer was deposited at 423 K by using a desputtering and the Co-W layer was deposited at room temperature and 573 K by an rf sputtering. It was observed that the composition dependence of of the lattice constant of the Co-W system was larger than that of Co-Cr system.",

author = "K. Oikawa and Qln, {G. W.} and M. Sato and S. Okamoto and O. Kitakami and Y. Shimada and K. Fukamichi and K. Ishida and T. Koyama",

note = "Funding Information: The present study was supported by the CREST Program of the Japan Science and Technology Agency, and the IT21 Program under Grant No. RR2002 and SRC. ",

year = "2004",

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TY - JOUR

T1 - Direct observation of magnetically induced phase separation in Co-W sputtered thin films

AU - Oikawa, K.

AU - Qln, G. W.

AU - Sato, M.

AU - Okamoto, S.

AU - Kitakami, O.

AU - Shimada, Y.

AU - Fukamichi, K.

AU - Ishida, K.

AU - Koyama, T.

N1 - Funding Information: The present study was supported by the CREST Program of the Japan Science and Technology Agency, and the IT21 Program under Grant No. RR2002 and SRC.

PY - 2004/9/27

Y1 - 2004/9/27

N2 - The compositional fluctuation of W developed in Cobalt-Tungsten (Co-W) films by a scanning transmission microscope was investigated. The effect of elastic energy on the phase separation behavior in the film was considered with the thermodynamic calculations. The Cromium (Cr) layer was deposited at 423 K by using a desputtering and the Co-W layer was deposited at room temperature and 573 K by an rf sputtering. It was observed that the composition dependence of of the lattice constant of the Co-W system was larger than that of Co-Cr system.

AB - The compositional fluctuation of W developed in Cobalt-Tungsten (Co-W) films by a scanning transmission microscope was investigated. The effect of elastic energy on the phase separation behavior in the film was considered with the thermodynamic calculations. The Cromium (Cr) layer was deposited at 423 K by using a desputtering and the Co-W layer was deposited at room temperature and 573 K by an rf sputtering. It was observed that the composition dependence of of the lattice constant of the Co-W system was larger than that of Co-Cr system.

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DO - 10.1063/1.1793354

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 13

ER -

Direct observation of magnetically induced phase separation in Co-W sputtered thin films

Abstract

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