Exact Result of Ground-State Entropy for Ising Pyrochlore Magnets under a Magnetic Field along [111] Axis.
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- Udagawa Masafumi
- Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033
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- Ogata Masao
- Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033
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- Hiroi Zenji
- Institute for Solid State Physics, University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581
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Abstract
Ground-state entropy for an Ising pyrochlore lattice is calculated exactly under a certain range of magnetic field along the [111] axis, where the ground-state entropy shows a plateau. The obtained entropy is 0.0808kB per spin, which agrees with the experimental value. Pauling's method for estimating the ground-state entropy for the ice problem is also applied to the present case. Comparison of the result obtained with our exact result shows that Pauling's method underestimates the entropy by about 10%.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 71 (10), 2365-2368, 2002
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390001204183485184
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- NII Article ID
- 210000103887
- 10010898525
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- NII Book ID
- AA00704814
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- BIBCODE
- 2002JPSJ...71.2365U
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 6332616
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed