Physical properties of the new Uranium ternary compounds U3Bi4M3 (M=Ni, Rh)

Autor: Klimczuk, T., Lee, Han-oh, Ronning, F., Durakiewicz, T., Kurita, N., Volz, H., Bauer, E. D., McQueen, T., Movshovich, R., Cava, R. J., Thompson, J. D.
Rok vydání: 2008
Předmět:
Zdroj: Physical Review B vol. 77 (2008) 245111
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevB.77.245111
Popis: We report the properties of two new isostructural compounds, U3Bi4Ni3 and U3Bi4Rh3. The first of these compounds is non-metallic, and the second is a nearly ferromagnetic metal, both as anticipated from their electron count relative to other U-based members of the larger 3-4-3 family. For U3Bi4Rh3, a logarithmic increase of C/T below 3 K, a resistivity proportional to T^4/3, and the recovery of Fermi-liquid behavior in both properties with applied fields greater than 3T, suggest that U3Bi4Rh3 may be a new example of a material displaying ferromagnetic quantum criticality.
Comment: 24 pages, 7 figures, submitted to Physical Review B
Databáze: arXiv