Ultrahigh-resolution photoemission spectroscopy of Ni borocarbides: direct observation of the superconducting gap and a change in gap anisotropy by impurity

T. Yokoya; T. Kiss; T. Watanabe; S. Shin; M. Nohara; H. Takagi; T. Oguchi

doi:10.1103/PhysRevLett.85.4952

Ultrahigh-resolution photoemission spectroscopy of Ni borocarbides: direct observation of the superconducting gap and a change in gap anisotropy by impurity

T. Yokoya, T. Kiss, T. Watanabe, S. Shin, M. Nohara, H. Takagi, T. Oguchi

Research output: Contribution to journal › Article

79 Citations (Scopus)

Abstract

The superconducting gaps (SGs) of YNi₂B₂C and Y(Ni_0.8Pt_0.2)₂CB₂C were studied using ultrahigh-resolution photoemission (PE) spectroscopy. A small but important difference in spectral shape was observed and attributed to the change in anisotropy of the SG between x=0.0 and 0.2 compounds.

Original language	English
Pages (from-to)	4952-4955
Number of pages	4
Journal	Physical Review Letters
Volume	85
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.85.4952
Publication status	Published - Dec 4 2000
Externally published	Yes

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ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Yokoya, T., Kiss, T., Watanabe, T., Shin, S., Nohara, M., Takagi, H., & Oguchi, T. (2000). Ultrahigh-resolution photoemission spectroscopy of Ni borocarbides: direct observation of the superconducting gap and a change in gap anisotropy by impurity. Physical Review Letters, 85(23), 4952-4955. https://doi.org/10.1103/PhysRevLett.85.4952

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AU - Takagi, H.

AU - Oguchi, T.

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Access to Document

10.1103/PhysRevLett.85.4952