Modification of Fe-Pd invar alloys by high-energy heavy ions

F. Ono; Y. Chimi; N. Ishikawa; H. Kanamitsu; Y. Matsushima; A. Iwase; T. Kambara

doi:10.1016/j.nimb.2007.01.053

Modification of Fe-Pd invar alloys by high-energy heavy ions

F. Ono, Y. Chimi, N. Ishikawa, H. Kanamitsu, Y. Matsushima, A. Iwase, T. Kambara

School of Science

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

5 Citations (Scopus)

Abstract

Measurements of AC-susceptibility versus temperature curves were made in thin plates of disordered Fe-30.6 at.%Pd and Fe-34 at.%Pd invar alloys before and after high-energy heavy ion irradiation. In both alloys the Curie temperature increased about 20-25 K by the irradiation of 200 MeV Xe-ions to the fluence of 10¹⁴ ions/cm². By comparing these data with the previous one for Fe-Ni and Fe-Pt invar alloys, it was concluded that there exist at least two mechanisms having opposite contribution. One is the negative pressure effect through the lattice expansion and another is the selective knock on of constituent atoms through the difference of the atomic radius.

Original language	English
Pages (from-to)	402-405
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	257
Issue number	1-2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.nimb.2007.01.053
Publication status	Published - Apr 1 2007

Keywords

Fe-Pd invar alloy
Ion irradiation
Magnetic properties

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nimb.2007.01.053

Cite this

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title = "Modification of Fe-Pd invar alloys by high-energy heavy ions",

abstract = "Measurements of AC-susceptibility versus temperature curves were made in thin plates of disordered Fe-30.6 at.%Pd and Fe-34 at.%Pd invar alloys before and after high-energy heavy ion irradiation. In both alloys the Curie temperature increased about 20-25 K by the irradiation of 200 MeV Xe-ions to the fluence of 1014 ions/cm2. By comparing these data with the previous one for Fe-Ni and Fe-Pt invar alloys, it was concluded that there exist at least two mechanisms having opposite contribution. One is the negative pressure effect through the lattice expansion and another is the selective knock on of constituent atoms through the difference of the atomic radius.",

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T1 - Modification of Fe-Pd invar alloys by high-energy heavy ions

AU - Ono, F.

AU - Chimi, Y.

AU - Ishikawa, N.

AU - Kanamitsu, H.

AU - Matsushima, Y.

AU - Iwase, A.

AU - Kambara, T.

PY - 2007/4/1

Y1 - 2007/4/1

N2 - Measurements of AC-susceptibility versus temperature curves were made in thin plates of disordered Fe-30.6 at.%Pd and Fe-34 at.%Pd invar alloys before and after high-energy heavy ion irradiation. In both alloys the Curie temperature increased about 20-25 K by the irradiation of 200 MeV Xe-ions to the fluence of 1014 ions/cm2. By comparing these data with the previous one for Fe-Ni and Fe-Pt invar alloys, it was concluded that there exist at least two mechanisms having opposite contribution. One is the negative pressure effect through the lattice expansion and another is the selective knock on of constituent atoms through the difference of the atomic radius.

AB - Measurements of AC-susceptibility versus temperature curves were made in thin plates of disordered Fe-30.6 at.%Pd and Fe-34 at.%Pd invar alloys before and after high-energy heavy ion irradiation. In both alloys the Curie temperature increased about 20-25 K by the irradiation of 200 MeV Xe-ions to the fluence of 1014 ions/cm2. By comparing these data with the previous one for Fe-Ni and Fe-Pt invar alloys, it was concluded that there exist at least two mechanisms having opposite contribution. One is the negative pressure effect through the lattice expansion and another is the selective knock on of constituent atoms through the difference of the atomic radius.

KW - Fe-Pd invar alloy

KW - Ion irradiation

KW - Magnetic properties

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 1-2 SPEC. ISS.

ER -

Modification of Fe-Pd invar alloys by high-energy heavy ions

Abstract

Keywords

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