Abstract
The pseudoquarternary system (HoxY1−x)Ni2B2C, has been investigated by resistance and magnetization measurements. A linear depression of the superconducting transition temperature Tc found with increasing Ho content is interpreted in the framework of the Abrikosov-Gor'kov theory which predicts also a linear scaling of Tc with the de Gennes factor of the rare earth elementsR of theRNi2B2C family. We found that both cases follow a common linear scaling behaviour including the superconducting transition and the magnetic ordering temperature. A reentrant behaviour observed for Ho contents x≥0.5 results in maxima in the temperature dependence of the upper critical field Hc2(T), which are compared with Hc2(T) data of TmNi2B2C. In the paramagnetic range of field and temperature the sample magnetization can be described by a Brillouin function with a Ho-moment of 10.5μ B.
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