Large Energy Gaps in Ca C6 From Tunneling Spectroscopy: Possible Evidence of Strong-Coupling Superconductivity
| dc.contributor.author | Kurter, Cihan | |
| dc.contributor.author | Özyüzer, Lütfi | |
| dc.contributor.author | Mazur, Daniel | |
| dc.contributor.author | Zasadzinski, John F. | |
| dc.contributor.author | Rosenmann, Daniel | |
| dc.contributor.author | Claus, Helmut | |
| dc.contributor.author | Hinks, David G. | |
| dc.contributor.author | Gray, Kenneth E. | |
| dc.coverage.doi | 10.1103/PhysRevB.76.220502 | |
| dc.date.accessioned | 2016-08-03T08:02:28Z | |
| dc.date.available | 2016-08-03T08:02:28Z | |
| dc.date.issued | 2007 | |
| dc.description.abstract | Tunneling in Ca C6 crystals reproducibly reveals superconducting gaps Δ of 2.3±0.2 meV that are ∼40% larger than reported earlier. In an isotropic s -wave scenario, that puts Ca C6 into the class of very strongly coupled superconductors, since 2Δ k Tc ∼4.6, implying that soft Ca phonons are primarily involved in the superconductivity. This conclusion explains the relatively large Ca isotope effect found recently for Ca C6, but it could also signal a strong anisotropy in the electron-phonon interaction. | en_US |
| dc.description.sponsorship | U.S. Department of Energy, Basic Energy Sciences, Materials Sciences under Contract No. DE-AC02-06CH11357 | en_US |
| dc.identifier.citation | Kurter, C., Özyüzer, L., Mazur, D., Zasadzinski, J. F., Rosenmann, D., Claus, H., Hinks, D. G., and Gray, K. E. (2007). Large energy gaps in Ca C6 from tunneling spectroscopy: Possible evidence of strong-coupling superconductivity. Physical Review B - Condensed Matter and Materials Physics, 76(22). doi:10.1103/PhysRevB.76.220502 | en_US |
| dc.identifier.doi | 10.1103/PhysRevB.76.220502 | en_US |
| dc.identifier.doi | 10.1103/PhysRevB.76.220502 | |
| dc.identifier.issn | 1098-0121 | |
| dc.identifier.issn | 1550-235X | |
| dc.identifier.issn | 1098-0121 | |
| dc.identifier.scopus | 2-s2.0-36849000282 | |
| dc.identifier.uri | http://doi.org/10.1103/PhysRevB.76.220502 | |
| dc.identifier.uri | https://hdl.handle.net/11147/2039 | |
| dc.language.iso | en | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.relation.ispartof | Physical Review B - Condensed Matter and Materials Physics | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.subject | Tunneling (Physics) | en_US |
| dc.subject | Energy gap | en_US |
| dc.subject | Tunneling spectroscopy | en_US |
| dc.title | Large Energy Gaps in Ca C6 From Tunneling Spectroscopy: Possible Evidence of Strong-Coupling Superconductivity | en_US |
| dc.type | Article | en_US |
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| gdc.author.institutional | Özyüzer, Lütfi | |
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| gdc.description.department | İzmir Institute of Technology. Physics | en_US |
| gdc.description.issue | 22 | en_US |
| gdc.description.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
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| gdc.description.volume | 76 | en_US |
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| gdc.oaire.keywords | Tunneling (Physics) | |
| gdc.oaire.keywords | Tunneling spectroscopy | |
| gdc.oaire.keywords | Energy gap | |
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