Suppression of ferromagnetism in URhGe doped with Ru

Details Suppression of ferromagnetism in URhGe doped with Ru Suppression of ferromagnetism in URhGe doped with Ru

2005-07-04

arxiv.org/abs/cond-mat/0507068v1

Physica B 378-380 (2006) 970-971.

Physics

Condensed Matter

Strongly Correlated Electrons

pdf file (2 pages, 1 figure); submitted to the Proceedings of the Int. Conf. SCES'05

Scientific paper

10.1016/j.physb.2006.01.370

In the correlated metal URhGe ferromagnetic order (T_C = 9.5 K) and superconductivity (T_s= 0.25 K) coexist at ambient pressure. Here we report on alloying URhGe by Ru, which enables one to tune the Curie temperature to 0 K. URuGe has a paramagnetic ground state and is isostructural to URhGe. We have prepared a series of polycrystalline URh_{1-x}Ru_{x}Ge samples over a wide range of x values. Magnetization and electrical resistivity data (T > 2 K) show, after an initial increase, a linear suppression of T_C with increasing x. The critical Ru concentration for the suppression of ferromagnetic order is x_cr ~ 0.38.

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