Thermal Analysis of Freedom of Spin in Partially Disordered State of the Antiferromagnetic Triangular Lattice in CuFeO2

Kazuyoshi Takeda, Keita Miyake, Masako Hitaka, Tatsuya Kawae

研究成果: Contribution to journalArticle

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The partially disordered spins in the triangular antiferromagnetic lattice in CuFeO2 have been studied by heat capacity measurements. a cusp and a sharp peak in the heat capacity curve were observed at TN1 = 14.0±0.5 k and TN2 = 11.0±0.5 k, respectively. The analysis of heat capacity revealed that the magnetic entropy associated with the anomaly in the heat capacity around TN2 is attributable to the disordering of one-fifth of Fe3+ spins. The present result is discussed in comparison with partially disordered states of CeSb and PrCo2Si2, anisotropic spin systems with frustration. The heat capacity cusp around TN1 is compared with the characteristic thermal behavior for frustrated spin systems.

元の言語英語
ページ(範囲)2017-2020
ページ数4
ジャーナルjournal of the physical society of japan
63
発行部数6
DOI
出版物ステータス出版済み - 1 1 1994

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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