ScholarWorks@숙명여자대학교

초록

We have measured the resistivity along c-axis rho(c)(H, T) of DyNi2B2C with the applied magnetic field H perpendicular to c-axis for 0 kG < H < 4 kG and temperature range 2 K < T < 300 K. From these, the superconducting upper critical field H-C2(T) curve of DyNi2B2C for the c-axis was constructed and our H-C2(T) curve from rho(c)(H, T) measurement has been compared with that from previous known rho(ab)(H, T) result. With additional magnetization isotherms M(H, T) for H perpendicular to c and H parallel to c-axis, the anisotropy in H-C2(T) curves of the magnetic structure DyNi2N2C, which has the superconducting transition temperature T-C is lower than the Neel temperatures T-N, might be originated from the additional anisotropic magnetic Dy3+ sublattice. (C) 2014 Elsevier B.V. All rights reserved.

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