Superconductivity and magnetism in DyNi2B2C single crystals

C. V. Tomy; M. R. Lees; L. Afalfiz; G. Balakrishnan; D. McK. Paul

doi:10.1103/PhysRevB.52.9186

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Superconductivity and magnetism in DyNi2B2C single crystals

C. V. Tomy, M. R. Lees, L. Afalfiz, G. Balakrishnan, D. McK. Paul

DOI 10.1103/PhysRevB.52.9186 · Physical Review B

T1

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Abstract

Superconductivity has been observed in DyNi2B2C single crystals at 6.4 K. DyNi2B2C also orders antiferromagnetically at ∼10.5 K and is a unique member of RNi2B2C compounds (R=Y or rare earth) in that the onset of superconductivity takes place in a magnetically ordered state. The crystals exhibit anomalous field-cooled magnetization in low applied fields of 1–5 Oe. Specific-heat measurements on the crystals give further evidence for the bulk nature of the magnetic order. The upper critical field Hc2 measured parallel and perpendicular to the c axis of the crystals, shows little or no anisotropy. Hc2(0) for DyNi2B2C is deduced to be 0.7 T.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
DyNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	6.4	Pressure not reported	onset
DyNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	6.4	Pressure not reported	onset
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