Superconductivity versus structural phase transition in the closely related Bi2Rh3.5S2 and Bi2Rh3S2 Lin, Qisheng Canfield, Paul Kaluarachchi, Udhara Xie, Weiwei Lin, Qisheng Taufour, Valentin Bud'ko, Sergey Miller, Gordon Miller, Gordon Canfield, Paul
dc.contributor.department Ames Laboratory 2018-02-16T10:38:22.000 2020-06-29T23:26:15Z 2020-06-29T23:26:15Z Thu Jan 01 00:00:00 UTC 2015 2015-05-01
dc.description.abstract <p>Single crystals of Bi2Rh3S2 and Bi2Rh3.5S2 were synthesized by solution growth, and the crystal structures and thermodynamic and transport properties of both compounds were studied. In the case ofBi2Rh3S2, a structural first-order transition at around 165 K is identified by single-crystal diffraction experiments, with clear signatures visible in resistivity, magnetization, and specific heat data. No superconducting transition for Bi2Rh3S2 was observed down to 0.5 K. In contrast, no structural phase transition at high temperature was observed for Bi2Rh3.5S2; however, bulk superconductivity with a critical temperature, Tc≈1.7 K, was observed. The Sommerfeld coefficient γ and the Debye temperature (ΘD) were found to be 9.41 mJ mol−1K−2 and 209 K, respectively, for Bi2Rh3S2, and 22 mJ mol−1K−2 and 196 K, respectively, for Bi2Rh3.5S2. Study of the specific heat in the superconducting state of Bi2Rh3.5S2 suggests that Bi2Rh3.5S2 is a weakly coupled, BCS superconductor.</p>
dc.description.comments <p>This article is from <em>Physical Review B</em> 91 (2015): 174513, doi:<a href="" target="_blank">10.1103/PhysRevB.91.174513</a>. Posted with permission.</p>
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dc.identifier archive/
dc.identifier.articleid 1254
dc.identifier.contextkey 7160381
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_pubs/253
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 22:58:03 UTC 2022
dc.source.uri 10.1103/PhysRevB.91.174513
dc.subject.disciplines Condensed Matter Physics
dc.subject.disciplines Engineering Physics
dc.subject.disciplines Materials Chemistry
dc.subject.disciplines Materials Science and Engineering
dc.subject.keywords Physics and Astronomy
dc.subject.keywords Chemistry
dc.title Superconductivity versus structural phase transition in the closely related Bi2Rh3.5S2 and Bi2Rh3S2
dc.type article
dc.type.genre article
dspace.entity.type Publication
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