We have grown the new uranium compound URhIn5 with the tetragonal HoCoGa5-type by the In self flux method. In contrast to the nonmagnetic ground state of the isoelectronic analogue URhGa5, URhIn5 is an antiferromagnet with antiferromagnetic transition temperature TN = 98 K. The moderately large electronic specific heat coefficient γ = 50 mJ/K2mol demonstrates the contribution of 5f electrons to the conduction band. On the other hand, magnetic susceptibility in the paramagnetic state roughly follows a Curie-Weiss law with a paramagnetic effective moment corresponding to a localized uranium ion. The crossover from localized to itinerant character at low temperature may occur around the characteristic temperature 150 K where the magnetic susceptibility and electrical resistivity show a marked anomaly.
@article{arxiv.1307.4231,
title = {Single crystal growth and physical properties of a new uranium compound URhIn$_5$},
author = {Y. Matsumoto and Y. Haga and N. Tateiwa and H. Sakai and T. D. Matsuda and E. Yamamoto and Z. Fisk},
journal= {arXiv preprint arXiv:1307.4231},
year = {2015}
}