c-axis correlations of the bi-axial magnetism in YBa2Cu3O6.6
The understanding of the pseudo-gap (PG) phase of the superconducting cuprates is a major scientific challenge. While various symmetry breakings in the PG state have been discovered, including q=0 magnetism that preserves the lattice translational (LT) symmetry and incipient charge-density-wave order that breaks the LT symmetry. However, none of these states can (alone) account for the PG, i.e., the partial gapping of the Fermi surface. Recently, we reported a hidden LT-breaking magnetism. Our polarized neutron diffraction measurements revealed magnetic correlations in underdoped bi-layer YBa2Cu3O6.6 single crystals that emerge below the PG onset temperature with (i) a planar propagation wave vector (¿, 0) ¿ (0, ¿) yielding a doubling or quadrupling of the magnetic unit cell and (ii) magnetic moments mainly pointing perpendicular to the CuO2 layers. The purpose of the experiment is to determine the evolution of the c-axis correlations of such magnetism as a function of temperature. We thus ask for 8 days on Thales/IN12 equipped with cryopad to carry out these investigations.
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The recommended format for citing this dataset in a research publication is in the following format:
BOUNOUA Dalila; Bourges; HIESS Arno; William Liège; RAYMOND Stephane; SIDIS Yvan and STEFFENS Paul. (2023). c-axis correlations of the bi-axial magnetism in YBa2Cu3O6.6. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-623
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