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Evidence for excluding the possibility of d-wave superconducting-gap symmetry in Ba-doped KFe2As2.
- Source :
-
Physical Review B: Condensed Matter & Materials Physics . Feb2014, Vol. 89 Issue 8, p081103-1-081103-5. 5p. - Publication Year :
- 2014
-
Abstract
- 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 change with a small amount of Ba doping. Our results totally exclude a possibility of d-wave symmetry and strongly suggest that both spin and orbital fluctuations are important for the pairing interaction in the Ba-doped K122. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10980121
- Volume :
- 89
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Physical Review B: Condensed Matter & Materials Physics
- Publication Type :
- Academic Journal
- Accession number :
- 95521540
- Full Text :
- https://doi.org/10.1103/PhysRevB.89.081103