Superconductivity in noncentrosymmetric Ag2Pd3S
H. Yoshida, H. Okabe, Y. Matsushita, M. Isobe, E. Takayama-Muromachi
DOI 10.1103/PhysRevB.95.184514 · Physical Review B
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Abstract
We have successfully synthesized the single crystal of Ag2Pd3S, which exhibits superconductivity with the transition temperature of Tc=2.25K. Ag2Pd3S crystallizes in the space group P4132 with the filled β−Mn structure, which has no inversion symmetry. The value of the Ginzburg-Landau parameter κGL indicates that Ag2Pd3S is a type-II superconductor. ΔC(Tc)/γnTc=1.50 and 2Δ/kBTc=3.48 from the heat-capacity analyses indicate that Ag2Pd3S is a weak-coupling Bardeen-Cooper-Schrieffer (BCS) superconductor with an isotropic superconducting gap. On the other hand, the violation of the Werthamer-Helfand-Hohenberg curve in the H−T phase diagram implies Ag2Pd3S is not a typical BCS superconductor.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ag2Pd3S Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.25 | Pressure not reported | onset |
| Ag2Pd3S Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.2 | Pressure not reported | onset |
| Ag2Pd3S Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.13 | Pressure not reported | unknown |
| CePt3Si Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| CeRhSi3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Li2Pt3B Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Li2Pd3B Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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