Structural, superconducting, and magnetic properties of YNi2B2C and ErNi2B2C
C. Godart, L. C. Gupta, R. Nagarajan, S. K. Dhar, H. Noel, M. Potel, Chandan Mazumdar, Zakir Hossain, C. Levy-Clement, G. Schiffmacher, B. D. Padalia, R. Vijayaraghavan
DOI 10.1103/PhysRevB.51.489 · Physical Review B
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Abstract
Discovery of a quaternary superconducting system Y-Ni-B-C has been reported recently. Our structural studies on YNi2B2C (Tc≊15.5 K) reveal large and anisotropic thermal vibrations of C atoms in the Y-C plane of the structure. No crystallographic phase transition is observed down to 50 K. Our specific-heat data suggest that YNi2B2C is a strong-coupling superconductor. Results of our resistivity, magnetic, and specific-heat data clearly suggest coexistence of superconductivity and magnetism (of Er spins) in ErNi2B2C (Tc≊10.5 K) below ≊7 K.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 15.5 | Pressure not reported | unknown |
| YNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 15.5 | Pressure not reported | unknown |
| ErNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10.5 | Pressure not reported | unknown |
| ErNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10.5 | Pressure not reported | unknown |
| ErNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10.5 | Pressure not reported | unknown |
| LuNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 16.5 | Pressure not reported | unknown |
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