Evidence for Fermi surface reconstruction in the static stripe phase of LaEu_0.2Sr_xCuO₄, x = 1/8

¹  Institute for Solid State Research, IFW-Dresden - P.O. Box 270116, D-01171 Dresden, Germany, EU
²  Institute of Metal Physics of National Academy of Sciences of Ukraine - 03142 Kyiv, Ukraine
³  Max-Planck-Institute for Solid State Research - Heisenbergstraße 1, D-70569 Stuttgart, Germany, EU
⁴  Department of advanced materials, University of Tokyo - Kashiwanoha 5-1-5, Kashiwa 277-8561, Japan
⁵  Elektronenspeicherring BESSY II, Helmholtz-Zentrum Berlin für Materialien und Energie Albert-Einstein-Strasse 15, D-12489, Berlin, Germany, EU

Corresponding author: v.zabolotnyy@ifw-dresden.de

Received: 17 February 2009
Accepted: 30 April 2009

Abstract

We present a photoemission study of LaEu_0.2Sr_xCuO₄ with doping level x = 1/8, where the charge carriers are expected to order forming static stripes. Though the local probes in direct space seem to be consistent with this idea, there has been little evidence found for such ordering in quasiparticle dispersions. We show that the Fermi surface topology of the 1/8 compound develops notable deviations from that observed for LaSr_xCuO₄ in a way consistent with the FS reconstruction expected for the scattering on the antiphase stripe order.