S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 339-340
Thermodynamic properties of the spin-chain compound Pr3RuO7M. Freamat, X.N. Lin, V. Durairaj, S. Chikara, G. Cao and J.W. Brill
Dept. of Physics and Astronomy, University of Kentucky, Lexington, KY 40506-0055, USA
We have measured the magnetic susceptibility ( and specific heat (c of single crystals of Pr3RuO7. The susceptibility indicates a Neel transition at T K, with an unusually mean-field specific heat anomaly. While indicates that all intrinsic moments order at T, a Schottky-like anomaly in c suggests that there remains a small crystal-field splitting between a magnetic and non-magnetic state of the rare earth ions.
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