Search for the existence of circulating currents in high-$T_c$ superconductors using the polarized neutron scattering technique
arXiv:cond-mat/0610614 · doi:10.1016/j.physb.2007.02.080
Abstract
We review experimental attempts using polarized neutron scattering technique to reveal the existence in high temperature superconductors of a long-range ordered state characterized by the spontaneous appearance of current loops. We draw a particular attention to our recent results (B. Fauqué {\it et al.}, {\it Phys. Rev. Lett.} {\bf 96}, 197001 (2006)) that, up to now, can be explained only by the theory of circulating current proposed by C.M. Varma.
presented at a conference: http://www.hmi.de/bensc/pncmi2006, to be published in Physica B