As in YBa2Cu3O6+x and HgBa2CuO8+d, the pseudo-gap state in Bi2Sr2CaCu2O8+d is characterized by the existence of an intra-unit-cell magnetic order revealed by polarized neutron scattering technique. We report here a supplementary set of polarized neutron scattering measurements for which the direction of the magnetic moment is determined and the magnetic intensity is calibrated in absolute units. The new data allow a close comparison between bilayer systems YBa2Cu3O6+x and Bi2Sr2CaCu2O8+d and rise important questions concerning the range of the magnetic correlations and the role of disorder around optimal doping.
@article{arxiv.1402.1367,
title = {Characterization of the Intra-Unit-Cell magnetic order in Bi2Sr2CaCu2O8+d},
author = {L. Mangin-Thro and S. De Almeida-Didry and Y. Sidis and F. Giovannelli and I. Laffez-Monot and P. Bourges},
journal= {arXiv preprint arXiv:1402.1367},
year = {2015}
}
Comments
12 pages, 8 figures, submitted to physical review B