Fermi-surface reconstruction by stripe order in cuprate superconductors

The origin of pairing in a superconductor resides in the underlying normal state. In the cuprate high-temperature superconductor YBCO, application of a magnetic field to suppress superconductivity reveals a ground state that appears to break the translational symmetry of the lattice, pointing to some density-wave order [1,2,3]. In another cuprate, Eu-LSCO, the onset of stripe order - a modulation of spin and charge densities - at low temperature is well established [4]. By a comparative study of thermoelectric transport in the cuprates YBCO and Eu-LSCO, we show that the two materials exhibit a very similar process of Fermi-surface reconstruction as a function of temperature and doping [5,6]. This strongly suggests that Fermi-surface reconstruction is caused by stripe order in both cases, compelling evidence that stripe order is a generic tendency of hole-doped cuprates.\\[4pt] Work done in collaboration with J. Chang, N. Doiron-Leyraud, E. Hassinger, R. Daou, D. LeBoeuf, M. Rondeau, B. J. Ramshaw, R. Liang, D. A. Bonn, W. N. Hardy, S. Pyon, T. Takayama, H. Takagi, I. Sheikin, L. Malone, C. Proust, K. Behnia and L. Taillefer.\\[4pt] [1] N. Doiron-Leyraud \textit{et al.}, Nature \textbf{447}, 565 (2007).\\[0pt] [2] D. LeBoeuf \textit{et al.}, Nature \textbf{450}, 533 (2007).\\[0pt] [3] D. LeBoeuf \textit{et al.}, Phys. Rev. B \textbf{83}, 054506 (2011).\\[0pt] [4] J. Fink \textit{et al}., Phys. Rev. B \textbf{83}, 092503 (2011).\\[0pt] [5] J. Chang \textit{et al.}, Phys. Rev. Lett. \textbf{104}, 057005 (2010).\\[0pt] [6] F. Lalibert\'e \textit{et al.}, Nat. Commun. \textbf{2}, 432 (2011).