2008/10/14 by M. E. Macovei, M. Nicklas, C. Krellner +2 · 8 citations
Materials Science · Physics and Astronomy · #Computer science #Iron-based superconductors research #Magnetic Properties of Alloys #Materials science #Rare-earth and actinide compounds #Substitution (logic) #cond-mat.str-el
paper · pdf · doi:10.1088/0953-8984/20/50/505205
published in Journal of Physics Condensed Matter 20(50), 505205 (IOP Publishing) · 9 pages, 7 figures, accepted for publication in J. Phys.: Condens. Matter
arxiv created 2008/10/14 · openalex publication_date 2008/11/07 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In this article we present a study of the electrical resistivity of Yb(Rh-xIrx)2Si2, x=0.06, under high pressure and in magnetic field. Ir substitution is expanding the unit cell and leads to a suppression of the antiferromagnetic transition temperature to zero, where eventually a quantum critical point (QCP) exists. We applied hydrostatic pressure to reverse the effect of substitution. Our results indicate that Yb(Rh0.94Ir0.06)2Si2 is situated in the immediate proximity to a volume controlled QCP, but still on the magnetically ordered side of the phase diagram. The temperature - pressure phase diagram of Yb(Rh0.94Ir0.06)2Si2 resembles that of the pure compound. Substitution acts mainly as chemical pressure. Disorder introduced by substitution has only minor effects.