Nonmagnetic impurity effects on the spin disordered state in NiGa2 S4

Yusuke Nambu; Satoru Nakatsuji; Yoshiteru Maeno

doi:10.1016/j.jmmm.2006.10.1011

Nonmagnetic impurity effects on the spin disordered state in NiGa₂ S₄

Yusuke Nambu, Satoru Nakatsuji, Yoshiteru Maeno

IMR - Materials Property Division

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

5 Citations (Scopus)

Abstract

Nonmagnetic impurity effects on the spin disordered state in the triangular antiferromagnet NiGa₂ S₄ were studied through magnetic and thermal measurements for Ni_{1 - x} Zn_x Ga₂ S₄(0.0 ≤ x ≤ 0.3) . The robust feature of the T²-dependent specific heat and its scaling behavior with the Weiss temperature, for all substitution up to 30%, indicate the existence of a coherent Nambu-Goldstone mode. The absence of either conventional magnetic order or bulk spin freezing suggests a novel symmetry breaking of the ground state.

Original language	English
Pages (from-to)	1316-1318
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 2
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.1011
Publication status	Published - 2007 Mar

Keywords

Nambu-Goldstone mode
NiGa S
Spin disordered state
Triangular lattice

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10.1016/j.jmmm.2006.10.1011

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title = "Nonmagnetic impurity effects on the spin disordered state in NiGa2 S4",

abstract = "Nonmagnetic impurity effects on the spin disordered state in the triangular antiferromagnet NiGa2 S4 were studied through magnetic and thermal measurements for Ni1 - x Znx Ga2 S4(0.0 ≤ x ≤ 0.3) . The robust feature of the T2-dependent specific heat and its scaling behavior with the Weiss temperature, for all substitution up to 30%, indicate the existence of a coherent Nambu-Goldstone mode. The absence of either conventional magnetic order or bulk spin freezing suggests a novel symmetry breaking of the ground state.",

keywords = "Nambu-Goldstone mode, NiGa S, Spin disordered state, Triangular lattice",

author = "Yusuke Nambu and Satoru Nakatsuji and Yoshiteru Maeno",

note = "Funding Information: This work was supported in part by Grants-in-Aid for Scientific Research from JSPS of Japan, and by the Inamori Foundation. ",

year = "2007",

month = mar,

doi = "10.1016/j.jmmm.2006.10.1011",

language = "English",

volume = "310",

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journal = "Journal of Magnetism and Magnetic Materials",

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TY - JOUR

T1 - Nonmagnetic impurity effects on the spin disordered state in NiGa2 S4

AU - Nambu, Yusuke

AU - Nakatsuji, Satoru

AU - Maeno, Yoshiteru

N1 - Funding Information: This work was supported in part by Grants-in-Aid for Scientific Research from JSPS of Japan, and by the Inamori Foundation.

PY - 2007/3

Y1 - 2007/3

N2 - Nonmagnetic impurity effects on the spin disordered state in the triangular antiferromagnet NiGa2 S4 were studied through magnetic and thermal measurements for Ni1 - x Znx Ga2 S4(0.0 ≤ x ≤ 0.3) . The robust feature of the T2-dependent specific heat and its scaling behavior with the Weiss temperature, for all substitution up to 30%, indicate the existence of a coherent Nambu-Goldstone mode. The absence of either conventional magnetic order or bulk spin freezing suggests a novel symmetry breaking of the ground state.

AB - Nonmagnetic impurity effects on the spin disordered state in the triangular antiferromagnet NiGa2 S4 were studied through magnetic and thermal measurements for Ni1 - x Znx Ga2 S4(0.0 ≤ x ≤ 0.3) . The robust feature of the T2-dependent specific heat and its scaling behavior with the Weiss temperature, for all substitution up to 30%, indicate the existence of a coherent Nambu-Goldstone mode. The absence of either conventional magnetic order or bulk spin freezing suggests a novel symmetry breaking of the ground state.

KW - Nambu-Goldstone mode

KW - NiGa S

KW - Spin disordered state

KW - Triangular lattice

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DO - 10.1016/j.jmmm.2006.10.1011

M3 - Article

AN - SCOPUS:33847320698

SN - 0304-8853

VL - 310

SP - 1316

EP - 1318

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SUPPL. PART 2

ER -

Nonmagnetic impurity effects on the spin disordered state in NiGa₂ S₄

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Keywords

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