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Browsing School of Arts and Sciences by Author "Watanabe, S."

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Browsing School of Arts and Sciences by Author "Watanabe, S."

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  • Evidence for excluding the possibility of 𝑑-wave superconducting-gap symmetry in Ba-doped KFe2As2 
    Ota, Y.; Okazaki, K.; Kotani, Y.; Shimojima, T.; Malaeb, W.; Watanabe, S.; Chen, C.-T.; Kihou, K. (2014-02-04)
    We have investigated the superconducting (SC)-gap anisotropy for several Ba-doped KFe2As2 samples using laser-based angle-resolved photoemission spectroscopy. We show that the SC-gap anisotropy and node positions drastically ...
  • Octet-Line Node Structure of Superconducting Order Parameter in KFe2As2 
    Okazaki, K.; Ota, Y.; Kotani, Y.; Malaeb, W.; Ishida, Y.; Shimojima, T.; Kiss, T.; Watanabe, S.; Chen, C.-T. (2012-09-14)
    In iron-pnictide superconductivity, the interband interaction between the hole and electron Fermi surfaces (FSs) is believed to play an important role. However, KFe2As2 has three zone-centered hole FSs and no electron FS ...

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