title: Complex chiral modulations in FeGe close to magnetic ordering.
abstract: We report on detailed polarized small-angle neutron scattering on cubic FeGe in magnetic fields applied either along (transverse) the scattering vector or parallel (longitudinal) to the neutron beam. The (H, T) phase diagrams for all principal axes contain a segmented A-phase region just below the onset of magnetic order. Hexagonal Bragg-spot patterns were observed across the entire A-phase region for the longitudinal geometry. Scattering intensity was observed in parts of the A phase for both scattering configurations. Only in a distinct pocket (A(1)) was vanishing scattering intensity found in the transverse geometry.
authors.affiliation: Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, Gatchina, Saint-Petersburg 188300, Russia and Saint-Petersburg State University, Ulyanovskaya 1, Saint-Petersburg 198504, Russia.
authors.forename: E
authors.initials: E
authors.lastname: Moskvin
authors.affiliation: Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, Gatchina, Saint-Petersburg 188300, Russia and Saint-Petersburg State University, Ulyanovskaya 1, Saint-Petersburg 198504, Russia.
authors.forename: S
authors.initials: S
authors.lastname: Grigoriev
authors.affiliation: Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, Gatchina, Saint-Petersburg 188300, Russia.
authors.forename: V
authors.initials: V
authors.lastname: Dyadkin
authors.affiliation: Helmholz-Zentrum Geesthacht, 21502 Geesthacht, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Eckerlebe
authors.affiliation: Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Baenitz
authors.affiliation: Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Schmidt
authors.affiliation: Diamond Light Source Ltd., Chilton, Didcot, Oxfordshire OX11 0DE, United Kingdom.
authors.forename: H
authors.initials: H
authors.lastname: Wilhelm