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Petrenko, Pascal Manuel","submitted_at":"2015-06-16T17:38:53Z","abstract_excerpt":"The frustrated pyrochlore antiferromagnet Gd$_{2}$Ti$_{2}$O$_{7}$ has an unusual partially-ordered magnetic structure at the lowest measurable temperatures. This structure is currently believed to involve four magnetic propagation vectors $\\mathbf{k}\\in \\langle \\frac{1}{2} \\frac{1}{2} \\frac{1}{2} \\rangle^*$ in a cubic 4-$\\mathbf{k}$ structure, based on analysis of magnetic diffuse-scattering data [J. Phys.: Condens. Matter 16, L321 (2004)]. Here, we present three pieces of evidence against the 4-$\\mathbf{k}$ structure. 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