Investigation of Superconducting Gap Structure in TbFeAsO$_{0.9}$F$_{0.1}$ using Point Contact Andreev Reflection

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dc.creatorYates, K. A.
dc.creatorMorrison, K.
dc.creatorRodgers, Jennifer A
dc.creatorPenny, George BS
dc.creatorBos, Jan-Willem G
dc.creatorAttfield, J. Paul
dc.creatorCohen, L. F.
dc.date2008-12-04
dc.date2009-03-20
dc.date.accessioned2026-07-07T12:54:11Z
dc.date.available2026-07-07T12:54:11Z
dc.descriptionBulk samples of TbFeAsO$_{0.9}$F$_{0.1}$ (T$_{c}$(on) = 50K) were measured by point contact Andreev reflection spectroscopy. The spectra show unambiguous evidence for multiple gap-like features plus the presence of high bias shoulders. By measuring the spectra as a function of temperature with both gold and superconducting niobium tips, we establish that the gap-like features are associated with superconducting order parameter in this material. We discuss whether the well defined zero bias conductance peak that we observe infrequently is associated with a nodal superconducting order parameter.
dc.description11 pages, 5 figures, published version
dc.identifierhttps://arxiv.org/abs/0812.0977
dc.identifierhttp://arxiv.org/abs/0812.0977
dc.identifierNew J Phys, 11, 025015 (2009)
dc.identifierdoi:10.1088/1367-2630/11/2/025015
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223839
dc.subjectSuperconductivity
dc.titleInvestigation of Superconducting Gap Structure in TbFeAsO$_{0.9}$F$_{0.1}$ using Point Contact Andreev Reflection
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