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Comparative photoemission studies on the superconducting gap of the filled skutterudite superconductors LaPt4Ge12 and PrPt4Ge12.
- Source :
-
Physical Review B: Condensed Matter & Materials Physics . Jul2012, Vol. 86 Issue 1, p1-5. 5p. - Publication Year :
- 2012
-
Abstract
- We performed a comparative study of the superconducting gap in the new filled skutterudite superconductors LaPt4Ge12 and LaPt4Ge12 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 LaPt4Ge12. In addition, we found that the two-gap model is more suitable for describing the superconducting-state spectrum of LaPt4Ge12 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 LaPt4Ge12. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10980121
- Volume :
- 86
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Physical Review B: Condensed Matter & Materials Physics
- Publication Type :
- Academic Journal
- Accession number :
- 79783185
- Full Text :
- https://doi.org/10.1103/PhysRevB.86.014521