Theoretical Description of Nearly Discontinuous Transition in Superconductors with Paramagnetic Depairing (Condensed Matter: Electric Structure, Electrical, Magnetic and Optical Properties)
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概要
- 論文の詳細を見る
Based on a theoretical argument and Monte Carlo simulations of a Ginzburg-Landau model derived microscopically, it is argued that, in type-II superconductors where both the paramagnetic and orbital depairings are important, a strong first-order transition (FOT) at H_<C2> expected in the mean field (MF) approximation never occurs in real systems and changes due to the fluctuation into a crossover. The present result explains why a nearly discontinuous crossover at H_<C2> with no intrinsic hysteresis is observed only in a clean superconducting material with a singlet pairing and a high condensation energy such as CeCoIn_5.
- 社団法人日本物理学会の論文
- 2003-10-15
著者
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Koikegami S
Jsps Tokyo
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Koikegami Shigeru
Nanoelectronics Research Institute Aist Tsukuba Central 2
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Koikegami Shigeru
Jsps:(present Address) Advance Soft And Iis University Of Tokyo
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Koikegami Shigeru
Nanoelectronics Research Institute
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Koike Soh
Institute Of Materials Science University Of Tsukuba:electrotechnical Laboratory
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Koike S
Department Of Physics Ii Science University Of Tokyo
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ADACHI Hiroto
Department of Physics, Okayama University
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Kohjiro S
Electrotechnical Lab. Tsukuba Jpn
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Adachi H
Department Of Physics Kyoto University
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Adachi Hiroto
Department Of Physics Kyoto University
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Ikeda R
Department Of Physics Kyoto University
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Ikeda Ryuichi
Department Of Chemistry University Of Tsukuba
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Kawabata Shiro
Nanotechnology Research Institute Aist
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IKEDA Ryusuke
Department of Physics, Kyoto University
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Ikeda Ryusuke
Department Of Physics Kyoto University
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