Collapse of antiferromagnetism induced by Ni-substitution in Eu(Pt1 - x Nix)2 Si2

A. Mitsuda; Y. Ikeda; N. Ietaka; S. Fukuda; Y. Isikawa

doi:10.1016/j.jmmm.2006.10.015

Collapse of antiferromagnetism induced by Ni-substitution in Eu(Pt_{1 - x} Ni_x)₂ Si₂

A. Mitsuda, Y. Ikeda, N. Ietaka, S. Fukuda, Y. Isikawa

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

8 Citations (Scopus)

Abstract

To clarify anomalous behaviour under high pressure in the antiferromagnet EuPt₂ Si₂(T_N = 15 K), effects of substitution of Ni for Pt in EuPt₂ Si₂ are investigated. Eu(Pt_{1 - x} Ni_x)₂ Si₂ is of single phase in the concentration range of 0 ≤ x ≤ 0.25 with preserving the identical crystal structure. The Ni-substitution decreases the lattice volume and the Néel temperature T_N. For x ≥ 0.20 the antiferromagnetism is collapsed completely. These phenomena correspond well to the behaviour under high pressure in EuPt₂ Si₂ and are associated with Eu valence variation toward a nonmagnetic trivalent direction.

Original language	English
Pages (from-to)	319-321
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 1
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.015
Publication status	Published - 2007 Mar
Externally published	Yes

Keywords

Antiferromagnetism substitution
Eu compound
Valence fluctuation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2006.10.015

Cite this

@article{ea66307960fe46b4abe60a8d99f4c95f,

title = "Collapse of antiferromagnetism induced by Ni-substitution in Eu(Pt1 - x Nix)2 Si2",

abstract = "To clarify anomalous behaviour under high pressure in the antiferromagnet EuPt2 Si2(TN = 15 K), effects of substitution of Ni for Pt in EuPt2 Si2 are investigated. Eu(Pt1 - x Nix)2 Si2 is of single phase in the concentration range of 0 ≤ x ≤ 0.25 with preserving the identical crystal structure. The Ni-substitution decreases the lattice volume and the N{\'e}el temperature TN. For x ≥ 0.20 the antiferromagnetism is collapsed completely. These phenomena correspond well to the behaviour under high pressure in EuPt2 Si2 and are associated with Eu valence variation toward a nonmagnetic trivalent direction.",

keywords = "Antiferromagnetism substitution, Eu compound, Valence fluctuation",

author = "A. Mitsuda and Y. Ikeda and N. Ietaka and S. Fukuda and Y. Isikawa",

note = "Funding Information: The authors would like to thank Dr. Kuwai and Dr. Mizushima for valuable comments and kind supports. This work was partly supported from the Japan Society for Promotion of Science (JSPS) through Grant no. 16740196.",

year = "2007",

month = mar,

doi = "10.1016/j.jmmm.2006.10.015",

language = "English",

volume = "310",

pages = "319--321",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "2 SUPPL. PART 1",

}

TY - JOUR

T1 - Collapse of antiferromagnetism induced by Ni-substitution in Eu(Pt1 - x Nix)2 Si2

AU - Mitsuda, A.

AU - Ikeda, Y.

AU - Ietaka, N.

AU - Fukuda, S.

AU - Isikawa, Y.

N1 - Funding Information: The authors would like to thank Dr. Kuwai and Dr. Mizushima for valuable comments and kind supports. This work was partly supported from the Japan Society for Promotion of Science (JSPS) through Grant no. 16740196.

PY - 2007/3

Y1 - 2007/3

N2 - To clarify anomalous behaviour under high pressure in the antiferromagnet EuPt2 Si2(TN = 15 K), effects of substitution of Ni for Pt in EuPt2 Si2 are investigated. Eu(Pt1 - x Nix)2 Si2 is of single phase in the concentration range of 0 ≤ x ≤ 0.25 with preserving the identical crystal structure. The Ni-substitution decreases the lattice volume and the Néel temperature TN. For x ≥ 0.20 the antiferromagnetism is collapsed completely. These phenomena correspond well to the behaviour under high pressure in EuPt2 Si2 and are associated with Eu valence variation toward a nonmagnetic trivalent direction.

AB - To clarify anomalous behaviour under high pressure in the antiferromagnet EuPt2 Si2(TN = 15 K), effects of substitution of Ni for Pt in EuPt2 Si2 are investigated. Eu(Pt1 - x Nix)2 Si2 is of single phase in the concentration range of 0 ≤ x ≤ 0.25 with preserving the identical crystal structure. The Ni-substitution decreases the lattice volume and the Néel temperature TN. For x ≥ 0.20 the antiferromagnetism is collapsed completely. These phenomena correspond well to the behaviour under high pressure in EuPt2 Si2 and are associated with Eu valence variation toward a nonmagnetic trivalent direction.

KW - Antiferromagnetism substitution

KW - Eu compound

KW - Valence fluctuation

UR - http://www.scopus.com/inward/record.url?scp=33847247442&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33847247442&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2006.10.015

DO - 10.1016/j.jmmm.2006.10.015

M3 - Article

AN - SCOPUS:33847247442

SN - 0304-8853

VL - 310

SP - 319

EP - 321

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SUPPL. PART 1

ER -