Observation of the peak effect in the superconductor Ca3Rh4Sn13

C. V. Tomy; G. Balakrishnan; D. McK. Paul

doi:10.1103/PhysRevB.56.8346

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Observation of the peak effect in the superconductor Ca3Rh4Sn13

C. V. Tomy, G. Balakrishnan, D. McK. Paul

DOI 10.1103/PhysRevB.56.8346 · Physical Review B

T1

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Abstract

The peak effect in single crystals of the superconductor Ca3Rh4Sn13 has been investigated by dc magnetization, ac susceptibility, electrical resistivity, and critical current measurements in applied magnetic fields. The transition from a weakly pinned region to a strongly pinned region is mapped out in the H-T phase diagram. The results on the superconducting stannides, Ca3Rh4Sn13 and Yb3Rh4Sn13, are found to be similar to that obtained on some heavy fermion and intermediate valence superconductors.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Ca3Rh4Sn13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	8.2	Pressure not reported	unknown
Ca3Rh4Sn13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	8.2	Pressure not reported	unknown
Yb3Rh4Sn13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Yb3Rh4Sn13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown