Superconducting properties of Rh9In4S4 single crystals
Udhara S. Kaluarachchi, Qisheng Lin, Weiwei Xie, Valentin Taufour, Sergey L. Bud'ko, Gordon J. Miller, Paul C. Canfield
DOI 10.1103/PhysRevB.93.094524 · Physical Review B
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Abstract
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, Tc∼2.25 K. The Sommerfeld coefficient γ and the Debye temperature (ΘD) were found to be 34 mJ mol−1 K−2 and 217 K, respectively. The observed specific heat jump, ΔC/γTc=1.66, is larger than the expected BCS weak coupling value of 1.43. Ginzburg-Landau (GL) ratio of the low-temperature GL-penetration depth, λGL≈5750 Å, to the GL-coherence length, ξGL≈94 Å, is large: κ ∼60. Furthermore, we observed a peak effect in the resistivity measurement as a function of both temperature and magnetic field.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Rh9In4S4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.25 | Pressure not reported | zero_resistance |
| Rh9In4S4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.24 | Pressure not reported | onset |
| Rh9In4S4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.22 | Pressure not reported | midpoint |
| Bi2Rh3.5S2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.7 | Pressure not reported | unknown |
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