Abstract
Crystallographic structure, magnetic ordering temperatures, structure of R magnetic moments and superconducting transition temperatures of RNiBC (R = Er, Ho, Dy, Tb, Gd) compounds are compared with the data of the corresponding RNi2B2C compounds. Information on local structure at the Ni site and on the order of the R magnetic moments are obtained from Mössbauer spectroscopy on 57Fe doped (1 at %) samples. The local symmetries of RNi2B2C and RNiBC compounds, measured through the ΔEQ, were found to be linearly correlated with the c’/a ratio (c’ is the distance of the R-C layers between which the Ni2-B2 layers are sandwiched). A scaling of Tc with the local symmetry (c’/a) was found to be the same for all the RNi2B2C and RNiBC (except for Y) compounds.
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Baggio-Saitovitch, E.M., Sanchez, D.R., Micklitz, H. (2001). Properties of the RniBC System: A Comparison with RNi2B2C. In: Müller, KH., Narozhnyi, V. (eds) Rare Earth Transition Metal Borocarbides (Nitrides): Superconducting, Magnetic and Normal State Properties. NATO Science Series, vol 14. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0763-4_5
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DOI: https://doi.org/10.1007/978-94-010-0763-4_5
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