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

N. Q. Sun, Yasushi Matsushima, D. Nishida, Tatsuo Kobayashi, M. Matsushita, S. Endo, F. Ono

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)37-43
Number of pages7
JournalJournal of Magnetism and Magnetic Materials
Volume301
Issue number1
DOIs
Publication statusPublished - Jun 2006

Fingerprint

Mechanical alloying
Curie temperature
pressure dependence
alloying
Spin glass
Gaussian distribution
Hydrostatic pressure
normal density functions
hydrostatic pressure
spin glass
Superconducting transition temperature
alternating current
Melting
transition temperature
melting
magnetic permeability

Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Effect of mechanical alloying on the pressure dependence of the Curie temperature of Ni-20 at% Mn alloy. / Sun, N. Q.; Matsushima, Yasushi; Nishida, D.; Kobayashi, Tatsuo; Matsushita, M.; Endo, S.; Ono, F.

In: Journal of Magnetism and Magnetic Materials, Vol. 301, No. 1, 06.2006, p. 37-43.

Research output: Contribution to journalArticle

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AU - Endo, S.

AU - Ono, F.

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