Effect of mechanical alloying on the pressure dependence of the Curie temperature of Ni-20 at% Mn alloy

N. Q. Sun; Y. Matsushima; D. Nishida; T. Kobayashi; M. Matsushita; S. Endo; F. Ono

doi:10.1016/j.jmmm.2005.06.006

Effect of mechanical alloying on the pressure dependence of the Curie temperature of Ni-20 at% Mn alloy

N. Q. Sun, Y. Matsushima, D. Nishida, T. Kobayashi, M. Matsushita, S. Endo, F. Ono

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

3 Citations (Scopus)

Abstract

AC susceptibility measurements in mechanically alloyed (MA) Ni-20 at% Mn were made under hydrostatic pressures up to 7.5 GPa. The results were compared with a bulk alloy made by the conventional method of melting. The Curie temperature decreased with pressure at the rate of -6.9 and -8.0 K/GPa in MA and the bulk alloy, respectively. The transition temperature to the reentrant spin glass state increased at the rate of 1.2 and 1.7 K/GPa in MA and the bulk alloy, respectively. The results were explained by assuming a Gaussian distribution of concentration fluctuation.

Original language	English
Pages (from-to)	37-43
Number of pages	7
Journal	Journal of Magnetism and Magnetic Materials
Volume	301
Issue number	1
DOIs	https://doi.org/10.1016/j.jmmm.2005.06.006
Publication status	Published - Jun 2006

Keywords

Magnetic-phase transition
Mechanical alloys
Ni-Mn alloys
Pressure effect

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2005.06.006

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title = "Effect of mechanical alloying on the pressure dependence of the Curie temperature of Ni-20 at% Mn alloy",

abstract = "AC susceptibility measurements in mechanically alloyed (MA) Ni-20 at% Mn were made under hydrostatic pressures up to 7.5 GPa. The results were compared with a bulk alloy made by the conventional method of melting. The Curie temperature decreased with pressure at the rate of -6.9 and -8.0 K/GPa in MA and the bulk alloy, respectively. The transition temperature to the reentrant spin glass state increased at the rate of 1.2 and 1.7 K/GPa in MA and the bulk alloy, respectively. The results were explained by assuming a Gaussian distribution of concentration fluctuation.",

keywords = "Magnetic-phase transition, Mechanical alloys, Ni-Mn alloys, Pressure effect",

author = "Sun, {N. Q.} and Y. Matsushima and D. Nishida and T. Kobayashi and M. Matsushita and S. Endo and F. Ono",

year = "2006",

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T1 - Effect of mechanical alloying on the pressure dependence of the Curie temperature of Ni-20 at% Mn alloy

AU - Sun, N. Q.

AU - Matsushima, Y.

AU - Nishida, D.

AU - Kobayashi, T.

AU - Matsushita, M.

AU - Endo, S.

AU - Ono, F.

PY - 2006/6

Y1 - 2006/6

N2 - AC susceptibility measurements in mechanically alloyed (MA) Ni-20 at% Mn were made under hydrostatic pressures up to 7.5 GPa. The results were compared with a bulk alloy made by the conventional method of melting. The Curie temperature decreased with pressure at the rate of -6.9 and -8.0 K/GPa in MA and the bulk alloy, respectively. The transition temperature to the reentrant spin glass state increased at the rate of 1.2 and 1.7 K/GPa in MA and the bulk alloy, respectively. The results were explained by assuming a Gaussian distribution of concentration fluctuation.

AB - AC susceptibility measurements in mechanically alloyed (MA) Ni-20 at% Mn were made under hydrostatic pressures up to 7.5 GPa. The results were compared with a bulk alloy made by the conventional method of melting. The Curie temperature decreased with pressure at the rate of -6.9 and -8.0 K/GPa in MA and the bulk alloy, respectively. The transition temperature to the reentrant spin glass state increased at the rate of 1.2 and 1.7 K/GPa in MA and the bulk alloy, respectively. The results were explained by assuming a Gaussian distribution of concentration fluctuation.

KW - Magnetic-phase transition

KW - Mechanical alloys

KW - Ni-Mn alloys

KW - Pressure effect

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JF - Journal of Magnetism and Magnetic Materials

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Effect of mechanical alloying on the pressure dependence of the Curie temperature of Ni-20 at% Mn alloy

Abstract

Keywords

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