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TT: Fachverband Tiefe Temperaturen

TT 27: CE: Poster Session

TT 27.24: Poster

Mittwoch, 24. März 2010, 14:00–18:00, Poster D1

Low temperature magnetoresistance of different strongly correlated metals close to a quantum phase transition — •M. Schubert, K. Winzer, M. Schneider, H.S. Jeevan, and P. Gegenwart — I. Physikalisches Institut, Georg-August-Universität Göttingen, Friedrich-Hund Platz 1, 37077 Göttingen

We report measurements of the electrical resistance at temperatures down to 15 mK in magnetic fields up to 7 Tesla on different intermetallic systems, which are located close to a quantum phase transition. Both heavy-fermion systems like YbRh₂(Si_1−xGe_x)₂ and CeAu₂In₄ as well as transition metal oxides (Sr_1−xCa_xRuO₃ thin films) are investigated. The results are compared with different theoretical scenarios.
Our work is supported by the DFG through SFB 602 and research unit “Quantum phase transitions”.