2009/06/30 by Sven Friedemann, Niels Oeschler, Cornelius Krellner +2
Materials Science · Physics and Astronomy · #Antiferromagnetism #Criticality #Electrical resistivity and conductivity #Magnetism #Metallurgical and Alloy Processes #Phase (matter) #Phase diagram #Physics of Superconductivity and Magnetism #Position (finance) #Quantum #Rare-earth and actinide compounds #cond-mat.str-el
paper · pdf · doi:10.1088/1742-6596/200/1/012038
published as J. Phys.: Conf. Ser. (2010) 100, 012038 · 4 pages, 4 figures, submitted to ICM/SCES2009
arxiv created 2009/07/24 · openalex publication_date 2010/01/01 · arxiv updated 2010/07/08 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Quantum criticality in Yb(Rh 0.97 Co 0.03 ) 2 Si 2 is investigated by means of resistivity and magnetoresistance. The partial substitution of Co leads to a stabilization of the magnetism as expected according to the application of chemical pressure for Yb systems. However, the signature of the Kondo-breakdown remains at the same position in the temperature-magnetic field phase diagram compared to stoichiometric YbRh 2 Si 2 . As a consequence, the Kondo-breakdown is situated within the antiferromagnetic phase. These results fit well within the global phase diagram of YbRh 2 Si 2 under chemical pressure [1].