ID | 48816 |
FullText URL | |
Author |
Nakamura, Yoshiaki
Okazaki, Hiroyuki
Yoshida, Rikiya
Wakita, Takanori
Takeya, Hiroyuki
Hirata, Kazuto
Hirai, Masaaki
Muraoka, Yuji
Kaken ID
researchmap
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Abstract | We performed a comparative study of the superconducting gap in the new filled skutterudite superconductors LaPt4Ge12 and PrPt4Ge12 using high-resolution photoemission spectroscopy. We succeeded in observing spectral changes across Tc that reflect the opening of the superconducting gap in both compounds and also in observing a noticeable difference in their respective superconducting spectral shapes near the Fermi level, pointing toward a more complex superconducting gap structure in PrPt4Ge12. In addition, we found that the two-gap model is more suitable for describing the superconducting-state spectrum of PrPt4Ge12 than the single-isotropic-gap and single-anisotropic-gap models, which suggests an explanation that multiband effects may possibly induce the anomalous superconducting properties of PrPt4Ge12.
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Published Date | 2012-07-26
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Publication Title |
Physical Review B
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Volume | volume86
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Issue | issue1
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Publisher | The American Physical Society
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Start Page | 014521-1
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End Page | 014521-5
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ISSN | 1098-0121
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Content Type |
Journal Article
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Project |
Research Center of New Functional Materials for Energy Production, Storage, and Transport
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Official Url | http://link.aps.org/doi/10.1103/PhysRevB.86.014521
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language |
English
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Copyright Holders | © 2012 The American Physical Society
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File Version | publisher
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Refereed |
True
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DOI | |
Web of Science KeyUT |