Dresden 2003 – wissenschaftliches Programm

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TT: Tiefe Temperaturen

TT 21: Phasendiagramm der HTSL

TT 21.1: Fachvortrag

Freitag, 28. März 2003, 10:15–10:40, HSZ304

Spin and charge ordering transitions in superconducting cuprates — •Matthias Vojta¹, Anatoli Polkovnikov², and Subir Sachdev² — ¹Institut für Theorie der Kondensierten Materie, Universität Karlsruhe — ²Department of Physics, Yale University, New Haven, USA

We discuss the competition between different ordered states in cuprates. We argue that the proximity of the optimally doped system to a superconductor with co-existing charge/spin order naturally explains a number of experimental observations. In particular, we discuss superconductors with coexisting static 1d or 2d bond-centered charge order, and also those with dynamic, but impurity-pinned spin/charge order, and compare the resulting density of states modulation with recent STM experiments.