Physical properties of RBi2 (R = La, Ce) under pressure Xiang, Li Gati, Elena Neilson, Kathryn Bud’ko, Sergey Canfield, Paul
dc.contributor.department Ames Laboratory
dc.contributor.department Physics and Astronomy 2021-01-12T04:47:07.000 2021-02-24T20:28:12Z 2021-02-24T20:28:12Z 2019-09-24
dc.description.abstract <p>We present a study of electrical transport properties of RBi2 (R=La,Ce) under hydrostatic pressure up to ∼2.5 GPa. These measurements are complemented by thermodynamic measurements of the specific heat on CeBi2 at different pressures up to 2.55 GPa. For CeBi2, we find a moderate increase of the antiferromagnetic transition, TN, from 3.3 K to 4.4 K by pressures up to 2.55 GPa. Notably, resistance measurements for both CeBi2 and LaBi2 show signatures of superconductivity for pressures above ∼1.7 GPa. However, the absence of superconducting features in specific-heat measurements for CeBi2 indicates that superconductivity in CeBi2 (and most likely LaBi2 as well) is not bulk and likely originates from traces of Bi flux, either on the surface of the platelike samples, or trapped inside the sample as laminar inclusions. Finally, we point out that extra caution should be exercised when claiming superconductivity based just on transport measurements, especially for Bi-containing compounds.</p>
dc.identifier archive/
dc.identifier.articleid 1792
dc.identifier.contextkey 21048296
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_manuscripts/785
dc.language.iso en
dc.relation.ispartofseries IS-J 10058
dc.subject.disciplines Condensed Matter Physics
dc.title Physical properties of RBi2 (R = La, Ce) under pressure
dc.type article
dc.type.genre article
dspace.entity.type Publication
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