Metallic spin-liquid behavior of the geometrically frustrated kondo lattice Pr2Ir2O7

S. Nakatsuji; Y. MacHida; Y. Maeno; T. Tayama; T. Sakakibara; J. Van Duijn; L. Balicas; J. N. Millican; R. T. MacAluso; Julia Y. Chan

doi:10.1103/PhysRevLett.96.087204

Metallic spin-liquid behavior of the geometrically frustrated kondo lattice Pr2Ir2O7

S. Nakatsuji^*, Y. MacHida, Y. Maeno, T. Tayama, T. Sakakibara, J. Van Duijn, L. Balicas, J. N. Millican, R. T. MacAluso, Julia Y. Chan

^*この論文の責任著者

物理学科

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

332 被引用数 (Scopus)

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Strongly frustrated magnetism of the metallic pyrochlore oxide Pr2Ir2O7 has been revealed by single crystal study. While Pr 4f moments have an antiferromagnetic RKKY interaction energy scale of |T*|=20K mediated by Ir 5d-conduction electrons, no magnetic long-range order is found except for partial spin freezing at 120mK. Instead, the Kondo effect, including a lnT dependence in the resistivity, emerges and leads to a partial screening of the moments below |T*|. Our results indicate that the underscreened moments show spin-liquid behavior below a renormalized correlation scale of 1.7K.

本文言語	英語
論文番号	087204
ジャーナル	Physical Review Letters
巻	96
号	8
DOI	https://doi.org/10.1103/PhysRevLett.96.087204
出版ステータス	出版済み - 2006

ASJC Scopus 主題領域

物理学および天文学一般

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10.1103/PhysRevLett.96.087204

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title = "Metallic spin-liquid behavior of the geometrically frustrated kondo lattice Pr2Ir2O7",

abstract = "Strongly frustrated magnetism of the metallic pyrochlore oxide Pr2Ir2O7 has been revealed by single crystal study. While Pr 4f moments have an antiferromagnetic RKKY interaction energy scale of |T*|=20K mediated by Ir 5d-conduction electrons, no magnetic long-range order is found except for partial spin freezing at 120mK. Instead, the Kondo effect, including a lnT dependence in the resistivity, emerges and leads to a partial screening of the moments below |T*|. Our results indicate that the underscreened moments show spin-liquid behavior below a renormalized correlation scale of 1.7K.",

author = "S. Nakatsuji and Y. MacHida and Y. Maeno and T. Tayama and T. Sakakibara and {Van Duijn}, J. and L. Balicas and Millican, {J. N.} and MacAluso, {R. T.} and Chan, {Julia Y.}",

year = "2006",

doi = "10.1103/PhysRevLett.96.087204",

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TY - JOUR

T1 - Metallic spin-liquid behavior of the geometrically frustrated kondo lattice Pr2Ir2O7

AU - Nakatsuji, S.

AU - MacHida, Y.

AU - Maeno, Y.

AU - Tayama, T.

AU - Sakakibara, T.

AU - Van Duijn, J.

AU - Balicas, L.

AU - Millican, J. N.

AU - MacAluso, R. T.

AU - Chan, Julia Y.

PY - 2006

Y1 - 2006

N2 - Strongly frustrated magnetism of the metallic pyrochlore oxide Pr2Ir2O7 has been revealed by single crystal study. While Pr 4f moments have an antiferromagnetic RKKY interaction energy scale of |T*|=20K mediated by Ir 5d-conduction electrons, no magnetic long-range order is found except for partial spin freezing at 120mK. Instead, the Kondo effect, including a lnT dependence in the resistivity, emerges and leads to a partial screening of the moments below |T*|. Our results indicate that the underscreened moments show spin-liquid behavior below a renormalized correlation scale of 1.7K.

AB - Strongly frustrated magnetism of the metallic pyrochlore oxide Pr2Ir2O7 has been revealed by single crystal study. While Pr 4f moments have an antiferromagnetic RKKY interaction energy scale of |T*|=20K mediated by Ir 5d-conduction electrons, no magnetic long-range order is found except for partial spin freezing at 120mK. Instead, the Kondo effect, including a lnT dependence in the resistivity, emerges and leads to a partial screening of the moments below |T*|. Our results indicate that the underscreened moments show spin-liquid behavior below a renormalized correlation scale of 1.7K.

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U2 - 10.1103/PhysRevLett.96.087204

DO - 10.1103/PhysRevLett.96.087204

M3 - 学術論文

AN - SCOPUS:33644700963

SN - 0031-9007

VL - 96

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 087204

ER -

Metallic spin-liquid behavior of the geometrically frustrated kondo lattice Pr2Ir2O7

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