Disappearance of ferromagnetism in amorphous La(Fe0.85Al0.15)13 under high pressure

M. Matsushita; M. Ohta; Asaya Fujita; K. Fukamichi; H. Ogiyama; F. Ono

doi:10.1016/j.jallcom.2007.01.049

Disappearance of ferromagnetism in amorphous La(Fe_0.85Al_0.15)₁₃ under high pressure

M. Matsushita, M. Ohta, Asaya Fujita, K. Fukamichi, H. Ogiyama, F. Ono

ENG - Materials Science

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

3 Citations (Scopus)

Abstract

The pressure variations of the magnetic property of amorphous La(Fe_0.85Al_0.15)₁₃ alloy have been investigated by ac susceptibility measurements under high pressures up to 7.3 GPa, in the temperature range between 5 and 330 K. With increasing pressure, the Curie temperature decreased, and a new high-pressure magnetic phase came to appear in the low-temperature region below 50 K. Further increasing pressure, the ferromagnetic state disappeared and then the new high-pressure magnetic phase only remained. These pressure variations of the magnetic properties in amorphous La(Fe_0.85Al_0.15)₁₃ alloy are quiet different from La(Fe_0.85Al_0.15)₁₃ compound, but similar to those of Invar alloys.

Original language	English
Pages (from-to)	21-24
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	455
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2007.01.049
Publication status	Published - 2008 May 8

Keywords

Amorphous alloy
High pressure
Invar
Magnetic phase transition
ac susceptibility

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2007.01.049

Cite this

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title = "Disappearance of ferromagnetism in amorphous La(Fe0.85Al0.15)13 under high pressure",

abstract = "The pressure variations of the magnetic property of amorphous La(Fe0.85Al0.15)13 alloy have been investigated by ac susceptibility measurements under high pressures up to 7.3 GPa, in the temperature range between 5 and 330 K. With increasing pressure, the Curie temperature decreased, and a new high-pressure magnetic phase came to appear in the low-temperature region below 50 K. Further increasing pressure, the ferromagnetic state disappeared and then the new high-pressure magnetic phase only remained. These pressure variations of the magnetic properties in amorphous La(Fe0.85Al0.15)13 alloy are quiet different from La(Fe0.85Al0.15)13 compound, but similar to those of Invar alloys.",

keywords = "Amorphous alloy, High pressure, Invar, Magnetic phase transition, ac susceptibility",

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T1 - Disappearance of ferromagnetism in amorphous La(Fe0.85Al0.15)13 under high pressure

AU - Matsushita, M.

AU - Ohta, M.

AU - Fujita, Asaya

AU - Fukamichi, K.

AU - Ogiyama, H.

AU - Ono, F.

PY - 2008/5/8

Y1 - 2008/5/8

N2 - The pressure variations of the magnetic property of amorphous La(Fe0.85Al0.15)13 alloy have been investigated by ac susceptibility measurements under high pressures up to 7.3 GPa, in the temperature range between 5 and 330 K. With increasing pressure, the Curie temperature decreased, and a new high-pressure magnetic phase came to appear in the low-temperature region below 50 K. Further increasing pressure, the ferromagnetic state disappeared and then the new high-pressure magnetic phase only remained. These pressure variations of the magnetic properties in amorphous La(Fe0.85Al0.15)13 alloy are quiet different from La(Fe0.85Al0.15)13 compound, but similar to those of Invar alloys.

AB - The pressure variations of the magnetic property of amorphous La(Fe0.85Al0.15)13 alloy have been investigated by ac susceptibility measurements under high pressures up to 7.3 GPa, in the temperature range between 5 and 330 K. With increasing pressure, the Curie temperature decreased, and a new high-pressure magnetic phase came to appear in the low-temperature region below 50 K. Further increasing pressure, the ferromagnetic state disappeared and then the new high-pressure magnetic phase only remained. These pressure variations of the magnetic properties in amorphous La(Fe0.85Al0.15)13 alloy are quiet different from La(Fe0.85Al0.15)13 compound, but similar to those of Invar alloys.

KW - Amorphous alloy

KW - High pressure

KW - Invar

KW - Magnetic phase transition

KW - ac susceptibility

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