Difference between Al and C doping in anisotropic upper critical field development in MgB2

dc.contributor.author Angst, M.
dc.contributor.author Bud'ko, Sergey L.
dc.contributor.author Wilke, R. H. T.
dc.contributor.author Canfield, Paul
dc.contributor.department Ames National Laboratory
dc.date.accessioned 2022-08-05T21:04:59Z
dc.date.available 2022-08-05T21:04:59Z
dc.date.issued 2005-04-01
dc.description.abstract The temperature dependence of the upper critical field H-c2 for both field directions in partially substituted polycrystalline MgB2 was determined. Whereas the suppression of T-c is similar for aluminum and carbon substituted samples, H-c2 is affected by the substitution in profoundly different ways. In the case of Al substitution changes can tentatively be described by intrinsic effects (shift of the Fermi level). In the C substituted samples, H-c2 is increased drastically, and extrinsic effects (disorder) have to play a major role. The strong contrast between the two substitutions is discussed, taking into account three relevant scattering rates.
dc.description.comments This article is published as Angst, M., S. L. Bud’ko, R. H. T. Wilke, and P. C. Canfield. "Difference between Al and C doping in anisotropic upper critical field development in Mg B 2." Physical Review B 71, no. 14 (2005): 144512. DOI: 10.1103/PhysRevB.71.144512. Copyright 2005 American Physical Society. Posted with permission.
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/Yr3Kml2r
dc.language.iso en
dc.publisher American Physical Society
dc.source.uri https://doi.org/10.1103/PhysRevB.71.144512 *
dc.title Difference between Al and C doping in anisotropic upper critical field development in MgB2
dc.type Article
dspace.entity.type Publication
relation.isAuthorOfPublication c5a8128b-7d98-4b8f-92d7-b1385e345713
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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