A-B Transition of Superfluid ^3He under Magnetic Field at Low Pressures : Condensed Matter and Statistical Physics
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概要
- 論文の詳細を見る
A-B transition of superfluid ^3He under magnetic field is discussed within the weak coupling theory which is known to be valid at low pressures. Free energy of the B phase under magnetic field is computed and compared with that of the planar state. The phase diagram obtained shows a satisfactory agreement with experiments. The phase transition between the B phase and the planar state is of first order below the tricritical point temperature and is of second order at higher temperatures. The tricritical point depends significantly on the Landau parameter. The weak coupling theory cannot identify the order parameter structure of the A phase, because the A phase free energy has a complicated degeneracy.
- 理論物理学刊行会の論文
- 1985-11-25
著者
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Ashida M
Department Of Physics Yamaguchi University
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Ashida Masami
Department Of Earth System Science Faculty Of Science Fukuoka University
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Nagai Katsuhiko
Department Of Physics Faculty Of Literature And Science Yamaguchi University
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NAGAI Katsuhiko
Department of Materials Science and Engineering, Faculty of Engineering, Yamagata University
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Ashida Masami
Department of Physics, Yamaguchi University
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ASHIDA Masami
Department of Physics, Tohoku University
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NAGAI Katsuhiko
Department of Physics, Faculty of Literature and Science Yamaguchi University
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