Ultrahigh-Resolution Photoemission Study of h-ZrRuP(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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We have performed ultrahigh-resolution photoemission spectroscopy on the intermetallic superconductor hexagonal h-ZrRuP (T_c=13K). We observed the opening of a superconducting gap below T_c, and found that the most probable order parameter is s-wave with a gap size (△) of 1.8meV at 6K. This gap size gives 2△_0/k_BT_c∿3.5, suggesting the weak-coupling nature of the superconductivity in h-ZrRuP. We also observed a pseudogap-like suppression of spectral weight up to ∿45meV from the Fermi level, indicative of the strong coupling of electrons with phonons and/or the charge density wave fluctuation.
- 社団法人日本物理学会の論文
- 2005-05-15
著者
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TAKAHASHI Takashi
Department of General Medicine, Kanazawa Medical University
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Matsui Hiroaki
Frontier Research Center Tokyo Institute Of Technology:erato-sort Jst In Frontier Research Center To
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Hirano Masahiro
Erato-sorst Jst In Frontier Research Center Tokyo Institute Of Technology
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Sato Takafumi
Department Of Chemical Engineering Tohoku University
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MATSUI Hiroaki
Department of Physics, Tohoku University
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HASHIMOTO Daisuke
Department of Physics, Tohoku University
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SOUMA Seigo
Department of Physics, Tohoku University
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SHIROTANI Ichimin
Muroran Institute of Technology
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Hirano Masahiro
Frontier Research Center Tokyo Institute Of Technology:erato-sort Jst In Frontier Research Center To
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Hashimoto Daisuke
Department Of Gastroenterologial Surgery Kumamoto University Graduate School Of Medical Sciences
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Hashimoto Daisuke
Department Of Physics Tohoku University
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Sato Takafumi
Department Of Applied Chemistry Utsunomiya University
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Sato T
Department Of Physics Tohoku University
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Takahashi Takashi
Department Of Applied Chemistry Tokyo Institute Of Technology
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Matsui Hiroaki
Department Of Bioscience & Technology Faculty Of Science & Engineering Ritsumeikan Universit
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Takahashi Takashi
Department Of Applied Chemistry Graduate School Of Science And Engineering Tokyo Institute Of Techno
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SATO Takafumi
Department of Physics, Tohoku University
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HASHIMOTO Daisuke
Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University
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TAKAHASHI Takashi
Department of Physics, Tohoku University
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