title: Magnetic microhelix coil structures.
abstract: Together with the well-known ferro- and antiferromagnetic ordering, nature has created a variety of complex helical magnetic configurations. Here, we design and investigate three-dimensional microhelix coil structures that are radial-, corkscrew-, and hollow-bar-magnetized. The magnetization configurations of the differently magnetized coils are experimentally revealed by probing their specific dynamic response to an external magnetic field. Helix coils offer an opportunity to realize microscale geometries of the magnetic toroidal moment, observed so far only in bulk multiferroic materials.
authors.affiliation: Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
authors.forename: Elliot J
authors.initials: EJ
authors.lastname: Smith
authors.forename: Denys
authors.initials: D
authors.lastname: Makarov
authors.forename: Samuel
authors.initials: S
authors.lastname: Sanchez
authors.forename: Vladimir M
authors.initials: VM
authors.lastname: Fomin
authors.forename: Oliver G
authors.initials: OG
authors.lastname: Schmidt