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Superconducting properties of Rh9In4S4 single crystals

TitleSuperconducting properties of Rh9In4S4 single crystals
Publication TypeJournal Article
Year of Publication2016
AuthorsKaluarachchi, US, Lin, QS, Xie, WW, Taufour, V, Bud'ko, SL, Miller, GJ, Canfield, PC
JournalPhysical Review B
Date Published03
Type of ArticleArticle
ISBN Number2469-9950
Accession NumberWOS:000372798800005
Keywordscharge-density-wave, dependence, electrical-properties, hard, high magnetic-fields, ii superconductors, parkerite, physics, solution growth, superconductors, temperature, transition

The synthesis and crystallographic, thermodynamic, and transport properties of single crystalline Rh9In4S4 were studied. The resistivity, magnetization, and specific heat measurements all clearly indicate bulk superconductivity with a critical temperature, T-c similar to 2.25 K. The Sommerfeld coefficient gamma and the Debye temperature(Theta(D)) were found to be 34 mJ mol(-1) K-2 and 217 K, respectively. The observed specific heat jump, Delta C/gamma T-c = 1.66, is larger than the expected BCS weak coupling value of 1.43. Ginzburg-Landau (GL) is large: kappa similar to 60. Furthermore, we observed a peak effect in the resistivity measurement as a function ratio of the low-temperature GL-penetration depth, lambda(GL) approximate to 5750 angstrom, to the GL-coherence length, xi(GL) approximate to 94 angstrom, of both temperature and magnetic field.

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Alternate JournalPhys. Rev. B