High field magnetotransport and specific heat in YbAgCu4

dc.contributor.author Lacerda, A.
dc.contributor.author Graf, T.
dc.contributor.author Hundley, M. F.
dc.contributor.author Torikachvili, M. S.
dc.contributor.author Lawrence, J. M.
dc.contributor.author Thompson, J. D.
dc.contributor.author Gajewski, D.
dc.contributor.author Canfield, Paul
dc.contributor.author Fisk, Z.
dc.contributor.department Ames National Laboratory
dc.date.accessioned 2022-07-07T17:38:24Z
dc.date.available 2022-07-07T17:38:24Z
dc.date.issued 1995-02-01
dc.description.abstract The electrical resistivity (rho) and magnetoresistance of polycrystalline YbAgCu4 have been measured at temperatures between 25 mK and 300 K, and at magnetic fields (B) up to 18 T. The magnetoresistance (rho(B) - rho(0))/rho(0)) is positive at all temperatures below 200 K and reaches its maximum of 60% at 18 T and 25 mK. The field-and temperature-dependent resistivity does not scale in a simple way. The opposite sign of the magnetoresistance at ambient and high pressure can be explained qualitatively by crystal-field effects lifting the degeneracy of the J = 7/2 groundstate. The linear coefficient of the specific heat (gamma) measured at fields up to 10 T shows a quadratic field dependence. We did not find a linear relation between gamma(2) and A, the T-2-coefficient of the temperature-dependent resistivity, with the applied magnetic field as the implicit parameter.
dc.description.comments This is a manuscript of an article published as Lacerda, A., T. Graf, M. F. Hundley, M. S. Torikachvili, J. M. Lawrence, J. D. Thompson, D. Gajewski, P. C. Canfield, and Z. Fisk. "High field magnetotransport and specific heat in YbAgCu4." Physica B: Condensed Matter 206 (1995): 358-360. DOI: 10.1016/0921-4526(94)00458-8. Copyright 1995 Elsevier B.V. Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0). Posted with permission.
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/WwPge3Lz
dc.language.iso en
dc.publisher Elsevier B.V.
dc.source.uri https://doi.org/10.1016/0921-4526(94)00458-8 *
dc.title High field magnetotransport and specific heat in YbAgCu4
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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