English

2D orbital-like magnetic order in ${\rm La_{2-x}Sr_xCuO_4}$

Superconductivity 2010-12-02 v1

Abstract

In high temperature copper oxides superconductors, a novel magnetic order associated with the pseudogap phase has been identified in two different cuprate families over a wide region of temperature and doping. We here report the observation below 120 K of a similar magnetic ordering in the archetypal cuprate La2xSrxCuO4{\rm La_{2-x}Sr_xCuO_4} (LSCO) system for x=0.085. In contrast to the previous reports, the magnetic ordering in LSCO is {\it\bf only} short range with an in-plane correlation length of \sim 10 \AA\ and is bidimensional (2D). Such a less pronounced order suggests an interaction with other electronic instabilities. In particular, LSCO also exhibits a strong tendency towards stripes ordering at the expense of the superconducting state.

Keywords

Cite

@article{arxiv.1005.3406,
  title  = {2D orbital-like magnetic order in ${\rm La_{2-x}Sr_xCuO_4}$},
  author = {V. Balédent and B. Fauqué and Y. Sidis and N. B. Christensen and S. Pailhès and K. Conder and E. Pomjakushina and J. Mesot and P. Bourges},
  journal= {arXiv preprint arXiv:1005.3406},
  year   = {2010}
}

Comments

4 figures, submitted to Phys. Rev. Lett