Magnetic behaviour of PrPd2B2C

Details Magnetic behaviour of PrPd2B2C Magnetic behaviour of PrPd2B2C

2008-09-24

arxiv.org/abs/0809.4245v1

Physica C, 460-462 (2007) 785

Physics

Condensed Matter

Materials Science

2 pages, 2 figures

Scientific paper

10.1016/j.physc.2007.04.018

We have synthesized a new quaternary borocarbide PrPd$_{2}$B$_{2}$C and measured its magnetization, electrical resistivity and specific heat. The compound crystallizes in the LuNi$_{2}$B$_{2}$C-type tetragonal structure (space group {\it I4/mmm}). Above 100 K the magnetic susceptibility follows Curie-Weiss behavior with effective moment $\mu_{eff}$ = 3.60 $\mu_{B}$, which is very close to the value expected for Pr$^{3+}$ ions. We do not find evidence for magnetic or superconducting transition down to 0.5 K. Specific heat exhibits a broad Schottky type anomaly with a peak at 24 K, very likely related to crystal electric field (CEF) excitation. The magnetic properties suggest the presence of a singlet CEF ground state leading to a Van-Vleck paramagnetic ground state.

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