μ SR study of thiospinel CuCrZrS4

Hiroyuki S. Suzuki; Takao Furubayashi; Yusuke Kawashima; Shoichi Nagata; Takao Suzuki; Takayuki Kawamata; Isao Watanabe; Teiichiro Matsuzaki; Alex Amato

doi:10.1016/j.physb.2008.11.115

μ SR study of thiospinel CuCrZrS₄

Hiroyuki S. Suzuki, Takao Furubayashi, Yusuke Kawashima, Shoichi Nagata, Takao Suzuki, Takayuki Kawamata, Isao Watanabe, Teiichiro Matsuzaki, Alex Amato

研究成果: Article › 査読

7 被引用数 (Scopus)

抄録

We report the results of μ SR measurement of the re-entrant spin-glass thiospinel CuCrZrS₄. We have observed a relatively small enhancement of the relaxation rate at T_C ∼ 60 K but no oscillations in the time spectra in the first magnetic phase between T_C and T_f ∼ 7 K, suggesting that the first magnetic phase is not a long-range ordering state. A fast depolarization component in ZF-μ SR appears around 40 K and develops accompanied by the rapid increase of its relaxation rate with decreasing temperature down to T_f. The fast depolarization component is interpreted as the signature of the magnetic correlation attributed to the re-entrant spin-glass behavior. At all the measured temperatures, there remain relaxations even at high magnetic fields, revealing a dynamical local field due to strong magnetic correlations.

本文言語	English
ページ（範囲）	649-651
ページ数	3
ジャーナル	Physica B: Condensed Matter
巻	404
号	5-7
DOI	https://doi.org/10.1016/j.physb.2008.11.115
出版ステータス	Published - 2009 4 15
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
電子工学および電気工学

文献へのアクセス

10.1016/j.physb.2008.11.115

他のファイルとリンク

引用スタイル

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title = "μ SR study of thiospinel CuCrZrS4",

abstract = "We report the results of μ SR measurement of the re-entrant spin-glass thiospinel CuCrZrS4. We have observed a relatively small enhancement of the relaxation rate at TC ∼ 60 K but no oscillations in the time spectra in the first magnetic phase between TC and Tf ∼ 7 K, suggesting that the first magnetic phase is not a long-range ordering state. A fast depolarization component in ZF-μ SR appears around 40 K and develops accompanied by the rapid increase of its relaxation rate with decreasing temperature down to Tf. The fast depolarization component is interpreted as the signature of the magnetic correlation attributed to the re-entrant spin-glass behavior. At all the measured temperatures, there remain relaxations even at high magnetic fields, revealing a dynamical local field due to strong magnetic correlations.",

keywords = "Large negative magnetoresistance, Re-entrant spin-glass, Thiospinel",

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AU - Suzuki, Hiroyuki S.

AU - Furubayashi, Takao

AU - Kawashima, Yusuke

AU - Nagata, Shoichi

AU - Suzuki, Takao

AU - Kawamata, Takayuki

AU - Watanabe, Isao

AU - Matsuzaki, Teiichiro

AU - Amato, Alex

PY - 2009/4/15

Y1 - 2009/4/15

N2 - We report the results of μ SR measurement of the re-entrant spin-glass thiospinel CuCrZrS4. We have observed a relatively small enhancement of the relaxation rate at TC ∼ 60 K but no oscillations in the time spectra in the first magnetic phase between TC and Tf ∼ 7 K, suggesting that the first magnetic phase is not a long-range ordering state. A fast depolarization component in ZF-μ SR appears around 40 K and develops accompanied by the rapid increase of its relaxation rate with decreasing temperature down to Tf. The fast depolarization component is interpreted as the signature of the magnetic correlation attributed to the re-entrant spin-glass behavior. At all the measured temperatures, there remain relaxations even at high magnetic fields, revealing a dynamical local field due to strong magnetic correlations.

AB - We report the results of μ SR measurement of the re-entrant spin-glass thiospinel CuCrZrS4. We have observed a relatively small enhancement of the relaxation rate at TC ∼ 60 K but no oscillations in the time spectra in the first magnetic phase between TC and Tf ∼ 7 K, suggesting that the first magnetic phase is not a long-range ordering state. A fast depolarization component in ZF-μ SR appears around 40 K and develops accompanied by the rapid increase of its relaxation rate with decreasing temperature down to Tf. The fast depolarization component is interpreted as the signature of the magnetic correlation attributed to the re-entrant spin-glass behavior. At all the measured temperatures, there remain relaxations even at high magnetic fields, revealing a dynamical local field due to strong magnetic correlations.

KW - Large negative magnetoresistance

KW - Re-entrant spin-glass

KW - Thiospinel

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