Magnetic properties of a random-bond ladder Cu2(C 5H12N2)2(Cl1-xBr x)4 at low temperatures

Hiroyuki Deguchi; Hatsuo Watanabe; Shuichi Yamamoto; Seishi Takagi; Masaki Mito; Tatsuya Kawae; Kazuyoshi Takeda; Hiroyuki Nojiri; Mitsuhiro Motokawa

doi:10.1080/10587250210765

Magnetic properties of a random-bond ladder Cu₂(C ₅H₁₂N₂)₂(Cl_1-xBr _x)₄ at low temperatures

Hiroyuki Deguchi, Hatsuo Watanabe, Shuichi Yamamoto, Seishi Takagi, Masaki Mito, Tatsuya Kawae, Kazuyoshi Takeda, Hiroyuki Nojiri, Mitsuhiro Motokawa

Institute for Materials Research (IMR) (institute affiliation only)

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

Magnetic measurements have been performed to investigate random-bond effects on a spin-ladder system. We synthesize a random mixture compound Cu ₂(C₅H₁₂N₂)₂(Cl _1-xBr_x)₄ which is expected to form a spin ladder with random-exchange legs and rungs. The magnetic properties of the compound are rather different from those of the pure systems. Paramagnetic divergence is significantly observed for the susceptibility at low temperatures and the magnetization appears even at low fields. The results suggest that the ground state of the random-bond ladder is a Griffiths phase.

Original language	English
Pages (from-to)	353-358
Number of pages	6
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	376
DOIs	https://doi.org/10.1080/10587250210765
Publication status	Published - 2002 Dec 1
Event	Proceedings of the Interdisciplinary Symposium on Multifunctionality of Inorganic , Organic, and Their Hybrid Solids - Honolulu, HI, United States Duration: 2000 Dec 15 → 2000 Dec 18

Keywords

Cu(CHN)(Cl Br)
Griffiths phase
Magnetization
Random-bond
Spin ladder
Susceptibility

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1080/10587250210765

Cite this

Deguchi, H., Watanabe, H., Yamamoto, S., Takagi, S., Mito, M., Kawae, T., Takeda, K., Nojiri, H., & Motokawa, M. (2002). Magnetic properties of a random-bond ladder Cu₂(C ₅H₁₂N₂)₂(Cl_1-xBr _x)₄ at low temperatures. Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, 376, 353-358. https://doi.org/10.1080/10587250210765

Magnetic properties of a random-bond ladder Cu₂(C ₅H₁₂N₂)₂(Cl_1-xBr _x)₄ at low temperatures. / Deguchi, Hiroyuki; Watanabe, Hatsuo; Yamamoto, Shuichi et al.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 376, 01.12.2002, p. 353-358.

Research output: Contribution to journal › Conference article › peer-review

Deguchi, H, Watanabe, H, Yamamoto, S, Takagi, S, Mito, M, Kawae, T, Takeda, K, Nojiri, H & Motokawa, M 2002, 'Magnetic properties of a random-bond ladder Cu₂(C ₅H₁₂N₂)₂(Cl_1-xBr _x)₄ at low temperatures', Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, vol. 376, pp. 353-358. https://doi.org/10.1080/10587250210765

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title = "Magnetic properties of a random-bond ladder Cu2(C 5H12N2)2(Cl1-xBr x)4 at low temperatures",

abstract = "Magnetic measurements have been performed to investigate random-bond effects on a spin-ladder system. We synthesize a random mixture compound Cu 2(C5H12N2)2(Cl 1-xBrx)4 which is expected to form a spin ladder with random-exchange legs and rungs. The magnetic properties of the compound are rather different from those of the pure systems. Paramagnetic divergence is significantly observed for the susceptibility at low temperatures and the magnetization appears even at low fields. The results suggest that the ground state of the random-bond ladder is a Griffiths phase.",

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AU - Deguchi, Hiroyuki

AU - Watanabe, Hatsuo

AU - Yamamoto, Shuichi

AU - Takagi, Seishi

AU - Mito, Masaki

AU - Kawae, Tatsuya

AU - Takeda, Kazuyoshi

AU - Nojiri, Hiroyuki

AU - Motokawa, Mitsuhiro

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AB - Magnetic measurements have been performed to investigate random-bond effects on a spin-ladder system. We synthesize a random mixture compound Cu 2(C5H12N2)2(Cl 1-xBrx)4 which is expected to form a spin ladder with random-exchange legs and rungs. The magnetic properties of the compound are rather different from those of the pure systems. Paramagnetic divergence is significantly observed for the susceptibility at low temperatures and the magnetization appears even at low fields. The results suggest that the ground state of the random-bond ladder is a Griffiths phase.

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