Dresden 2011 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

TT: Fachverband Tiefe Temperaturen

TT 10: Poster Session: Superconductivity

TT 10.37: Poster

Monday, March 14, 2011, 14:00–18:00, P4

63 Cu and 17 O NMR of electron-doped cuprates — •Michael Jurkutat¹, Grant V. M. Williams², Damian Rybicki¹, and Jürgen Haase¹ — ¹Universität Leipzig, Fakultät für Physik und Geowissenschaften, 04103 Leipzig, Germany — ²The MacDiarmid Institute, Industrial Research, P.O. Box 31310, Lower Hutt 5040, New Zealand

The electron-doped cuprates have scarcely been investigated particularly with nuclear magnetic resonance (NMR), but promise further insight into the still unresolved mechanism of high-temperature superconductivity. We present results of 63 Cu and 17 O NMR of electron-doped Pr_2−xCe_xCuO₄ probing the electronic structure locally. Using double resonance methods we were able to separate signals from different sites, which allows a comparison to the electronic structure of hole-doped materials. Interestingly, despite some clear differences our findings suggest the presence of a two-component electronic fluid as is increasingly accepted to be the case in the hole-doped cuprates and associated with their curious normal-state properties.