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- Kurihara Susumu
- The Institute for Solid State Physics, The University of Tokyo
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- Fukuyama Hidetoshi
- The Institute for Solid State Physics, The University of Tokyo
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- Nakajima Sadao
- The Institute for Solid State Physics, The University of Tokyo
書誌事項
- タイトル別名
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- A Model for Elastic Anomalies in K<SUB>2</SUB>Pt(CN)<SUB>4</SUB>Br<SUB>0.3</SUB>·3H<SUB>2</SUB>O
- Model for Elastic Anomalies in K2Pt CN
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抄録
A “spin-lattice” model is proposed for K2Pt(CN)4Br0.3·3H2O (KCP) to solve the puzzling problem of the apparent complete softening of shear modulus C66 without any structural phase transition at low temperatures. Our model emphasizes the importance of the site II water molecules lying between bromine ions and Pt(CN)4 complexes. Each water molecule is assumed to have three configurations, which are represented by an S=1 Ising spin. An almost complete agreement is obtained between calculation and experimental data. A marked “hardening” of C66 at low temperatures (T<90 K) is predicted. A structural phase transition is possible if the spin-lattice coupling can be enhanced by e.g. external pressure. Ultrasonic attenuation coefficient α66, and also C44, α44, are calculated.
収録刊行物
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 47 (5), 1403-1410, 1979
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390001204182785664
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- NII論文ID
- 210000088120
- 110001964475
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1979JPSJ...47.1403K
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- COI
- 1:CAS:528:DyaL3cXjtlSisg%3D%3D
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 2067854
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可