Transport properties accompanied by collapse of antiferromagnetism of Eu (Pt1 - x Nix)2 Si2

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

doi:10.1016/j.physb.2007.10.031

Transport properties accompanied by collapse of antiferromagnetism of Eu (Pt_{1 - x} Ni_x)₂ Si₂

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

IMR - Materials Property Division

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

Abstract

We have measured temperature dependence of electrical resistivity ρ of Eu (Pt_{1 - x} Ni_x)₂ Si₂ (0 ≤ x ≤ 0.25) to investigate the behavior associated with collapse of antiferromagnetism which was previously found in the magnetic susceptibility. For x ≤ 0.15, the antiferromagnetism survives but is gradually collapsed with increasing x. For x = 0.20 and 0.25, the ρ (T) curve exhibits T² dependence corresponding to Fermi-liquid behavior. The T² coefficient of the resistive A and Sommerfeld coefficient γ fulfill new grand Kadowaki-Woods relation, which implies that the samples of x = 0.20 and 0.25 are a member of heavy fermion systems.

Original language	English
Pages (from-to)	786-788
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	403
Issue number	5-9
DOIs	https://doi.org/10.1016/j.physb.2007.10.031
Publication status	Published - 2008 Apr 1

Keywords

Antiferromagnetism
EuPt Si
Substitution effect
Valence instability

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10.1016/j.physb.2007.10.031

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@article{2641e5b1e113434cb9c75a80e439496a,

title = "Transport properties accompanied by collapse of antiferromagnetism of Eu (Pt1 - x Nix)2 Si2",

abstract = "We have measured temperature dependence of electrical resistivity ρ of Eu (Pt1 - x Nix)2 Si2 (0 ≤ x ≤ 0.25) to investigate the behavior associated with collapse of antiferromagnetism which was previously found in the magnetic susceptibility. For x ≤ 0.15, the antiferromagnetism survives but is gradually collapsed with increasing x. For x = 0.20 and 0.25, the ρ (T) curve exhibits T2 dependence corresponding to Fermi-liquid behavior. The T2 coefficient of the resistive A and Sommerfeld coefficient γ fulfill new grand Kadowaki-Woods relation, which implies that the samples of x = 0.20 and 0.25 are a member of heavy fermion systems.",

keywords = "Antiferromagnetism, EuPt Si, Substitution effect, Valence instability",

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

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

year = "2008",

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doi = "10.1016/j.physb.2007.10.031",

language = "English",

volume = "403",

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journal = "Physica B: Condensed Matter",

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TY - JOUR

T1 - Transport properties accompanied by collapse of antiferromagnetism of 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 T. Kuwai and T. Mizushima for kind experimental supports and fruitful discussion. This work was partly supported by the Japan Society for Promotion of Science (JSPS) through Grant no. 16740196.

PY - 2008/4/1

Y1 - 2008/4/1

N2 - We have measured temperature dependence of electrical resistivity ρ of Eu (Pt1 - x Nix)2 Si2 (0 ≤ x ≤ 0.25) to investigate the behavior associated with collapse of antiferromagnetism which was previously found in the magnetic susceptibility. For x ≤ 0.15, the antiferromagnetism survives but is gradually collapsed with increasing x. For x = 0.20 and 0.25, the ρ (T) curve exhibits T2 dependence corresponding to Fermi-liquid behavior. The T2 coefficient of the resistive A and Sommerfeld coefficient γ fulfill new grand Kadowaki-Woods relation, which implies that the samples of x = 0.20 and 0.25 are a member of heavy fermion systems.

AB - We have measured temperature dependence of electrical resistivity ρ of Eu (Pt1 - x Nix)2 Si2 (0 ≤ x ≤ 0.25) to investigate the behavior associated with collapse of antiferromagnetism which was previously found in the magnetic susceptibility. For x ≤ 0.15, the antiferromagnetism survives but is gradually collapsed with increasing x. For x = 0.20 and 0.25, the ρ (T) curve exhibits T2 dependence corresponding to Fermi-liquid behavior. The T2 coefficient of the resistive A and Sommerfeld coefficient γ fulfill new grand Kadowaki-Woods relation, which implies that the samples of x = 0.20 and 0.25 are a member of heavy fermion systems.

KW - Antiferromagnetism

KW - EuPt Si

KW - Substitution effect

KW - Valence instability

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DO - 10.1016/j.physb.2007.10.031

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SN - 0921-4526

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EP - 788

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 5-9

ER -

Transport properties accompanied by collapse of antiferromagnetism of Eu (Pt_{1 - x} Ni_x)₂ Si₂

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Keywords

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