Organic radical solid as typical one-dimensional heisenberg ferromagnet with quantum spin

Kazuyoshi Takeda; Toshiyuki Hamano; Tatsuya Kawae; Masako Hitaka; Syuji Kawasaki; Minoru Takahashi; Kazuo Mukai

Organic radical solid as typical one-dimensional heisenberg ferromagnet with quantum spin

Kazuyoshi Takeda, Toshiyuki Hamano, Tatsuya Kawae, Masako Hitaka, Syuji Kawasaki, Minoru Takahashi, Kazuo Mukai

Applied Physics

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

3 Citations (Scopus)

Abstract

Quantum statistics for the most isotropic spin (S=1/2) system in one dimension has been studied with a newly synthesized ferromagnetic organic radical crystal of 3-(4-chlorophenyl)-1,5-diphenyl oxoverdazyl. The characteristic field dependence of the magnetic heat capacity of this crystal is quantitatively explained by the theoretical values derived from the Betheansatz technique applied to the quantum transfer matrix, with a unique intrachain exchange constant J/k_B=5.5 K. By the simultaneous measurement of magnetic susceptibility and heat capacity, the three-dimensional ordering at T_C=0.21 K, which is triggered by a weak interchain coupling |zJ'|/k_B = 3 × 10^-2, is confirmed.

Original language	English
Pages (from-to)	107-114
Number of pages	8
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	278-279
Publication status	Published - Dec 1 1996

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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Organic radical solid as typical one-dimensional heisenberg ferromagnet with quantum spin. / Takeda, Kazuyoshi; Hamano, Toshiyuki; Kawae, Tatsuya; Hitaka, Masako; Kawasaki, Syuji; Takahashi, Minoru; Mukai, Kazuo.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 278-279, 01.12.1996, p. 107-114.

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

Takeda, Kazuyoshi ; Hamano, Toshiyuki ; Kawae, Tatsuya ; Hitaka, Masako ; Kawasaki, Syuji ; Takahashi, Minoru ; Mukai, Kazuo. / Organic radical solid as typical one-dimensional heisenberg ferromagnet with quantum spin. In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 1996 ; Vol. 278-279. pp. 107-114.

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abstract = "Quantum statistics for the most isotropic spin (S=1/2) system in one dimension has been studied with a newly synthesized ferromagnetic organic radical crystal of 3-(4-chlorophenyl)-1,5-diphenyl oxoverdazyl. The characteristic field dependence of the magnetic heat capacity of this crystal is quantitatively explained by the theoretical values derived from the Betheansatz technique applied to the quantum transfer matrix, with a unique intrachain exchange constant J/kB=5.5 K. By the simultaneous measurement of magnetic susceptibility and heat capacity, the three-dimensional ordering at TC=0.21 K, which is triggered by a weak interchain coupling |zJ'|/kB = 3 × 10-2, is confirmed.",

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AU - Takeda, Kazuyoshi

AU - Hamano, Toshiyuki

AU - Kawae, Tatsuya

AU - Hitaka, Masako

AU - Kawasaki, Syuji

AU - Takahashi, Minoru

AU - Mukai, Kazuo

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AB - Quantum statistics for the most isotropic spin (S=1/2) system in one dimension has been studied with a newly synthesized ferromagnetic organic radical crystal of 3-(4-chlorophenyl)-1,5-diphenyl oxoverdazyl. The characteristic field dependence of the magnetic heat capacity of this crystal is quantitatively explained by the theoretical values derived from the Betheansatz technique applied to the quantum transfer matrix, with a unique intrachain exchange constant J/kB=5.5 K. By the simultaneous measurement of magnetic susceptibility and heat capacity, the three-dimensional ordering at TC=0.21 K, which is triggered by a weak interchain coupling |zJ'|/kB = 3 × 10-2, is confirmed.

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