dc electrical resistivity and upper critical magnetic field of superconducting ternary silicides and germanides with the Sc5Co4Si10-type structure
L. S. Hausermann-Berg, R. N. Shelton
DOI 10.1103/PhysRevB.35.4673 · Physical Review B
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Abstract
Results of dc electrical resistivity experiments are presented for eleven ternary superconducting compounds of the form R5T4X10 (R=Sc, Y, and Lu; T=Co, Rh, Ir, and Os; X=Si or Ge). Upper critical magnetic field results are presented for Sc5Co4Si10, Sc5Rh4Si10, Sc5Ir4Si10, Lu5Rh4Si10, Lu5Ir4Si10 and Y5Os4Ge10. Electrical-resistivity experiments show strong negative curvature in the data for Y5Ir4Si10, Lu5Ir4Ge10, and Y5Os4Ge10 plus a sharp anomaly at about 140 and 80 K for Lu5Rh4Si10 and Lu5Ir4Si10, respectively. Analysis of the upper critical magnetic field yields relatively large values of &∼10 kOe/K and Hc2(0)∼60 kOe for Y5Os4Ge10 as well as indicating that there is little or no Pauli limiting in these six samples.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sc5Co4Si10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Sc5Rh4Si10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Sc5Ir4Si10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Lu5Rh4Si10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Lu5Ir4Si10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Y5Os4Ge10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Y5Ir4Si10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Lu5Ir4Ge10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Lu5Rh4Ge10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Y5Ir4Ge10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Y5Rh4Ge10 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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