Dynamic susceptibility study on the skyrmion phase stability of Fe0.7Co0.3Si

T. Y. Ou-Yang; G. J. Shu; C. D. Hu; F. C. Chou

doi:10.1063/1.4915934

Dynamic susceptibility study on the skyrmion phase stability of Fe_0.7Co_0.3Si

T. Y. Ou-Yang
, G. J. Shu
, C. D. Hu
, F. C. Chou

Department of Materials and Mineral Resources Engineering

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

16 Scopus citations

Abstract

The AC susceptibilities of Fe_1-xCo_xSi (0.1 ≤ × ≤ 0.7) alloys were measured and compared with that of MnSi. The range of skyrmion phase in the H-T phase space was enlarged and moved to higher temperatures when approximately 1/3 of the Fe was substituted with Co. Comparing with MnSi, the skyrmion phase of Fe_0.7Co_0.3Si was found thermodynamically more stable under a much lower and narrower critical field near 280 ± 50 Oe. The stability range in the H-T phase space and the free energy reduction δE (as a function of the applied magnetic field) for both the Fe_0.7Co_0.3Si and MnSi were compared.

Original language	English
Article number	123903
Journal	Journal of Applied Physics
Volume	117
Issue number	12
DOIs	https://doi.org/10.1063/1.4915934
State	Published - 28 Mar 2015

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© 2015 AIP Publishing LLC.

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title = "Dynamic susceptibility study on the skyrmion phase stability of Fe0.7Co0.3Si",

abstract = "The AC susceptibilities of Fe1-xCoxSi (0.1 ≤ × ≤ 0.7) alloys were measured and compared with that of MnSi. The range of skyrmion phase in the H-T phase space was enlarged and moved to higher temperatures when approximately 1/3 of the Fe was substituted with Co. Comparing with MnSi, the skyrmion phase of Fe0.7Co0.3Si was found thermodynamically more stable under a much lower and narrower critical field near 280 ± 50 Oe. The stability range in the H-T phase space and the free energy reduction δE (as a function of the applied magnetic field) for both the Fe0.7Co0.3Si and MnSi were compared.",

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T1 - Dynamic susceptibility study on the skyrmion phase stability of Fe0.7Co0.3Si

AU - Ou-Yang, T. Y.

AU - Shu, G. J.

AU - Hu, C. D.

AU - Chou, F. C.

PY - 2015/3/28

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N2 - The AC susceptibilities of Fe1-xCoxSi (0.1 ≤ × ≤ 0.7) alloys were measured and compared with that of MnSi. The range of skyrmion phase in the H-T phase space was enlarged and moved to higher temperatures when approximately 1/3 of the Fe was substituted with Co. Comparing with MnSi, the skyrmion phase of Fe0.7Co0.3Si was found thermodynamically more stable under a much lower and narrower critical field near 280 ± 50 Oe. The stability range in the H-T phase space and the free energy reduction δE (as a function of the applied magnetic field) for both the Fe0.7Co0.3Si and MnSi were compared.

AB - The AC susceptibilities of Fe1-xCoxSi (0.1 ≤ × ≤ 0.7) alloys were measured and compared with that of MnSi. The range of skyrmion phase in the H-T phase space was enlarged and moved to higher temperatures when approximately 1/3 of the Fe was substituted with Co. Comparing with MnSi, the skyrmion phase of Fe0.7Co0.3Si was found thermodynamically more stable under a much lower and narrower critical field near 280 ± 50 Oe. The stability range in the H-T phase space and the free energy reduction δE (as a function of the applied magnetic field) for both the Fe0.7Co0.3Si and MnSi were compared.

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Dynamic susceptibility study on the skyrmion phase stability of Fe_0.7Co_0.3Si

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