title: Geometry-induced spin-ice structures prepared by self-organization on the nanoscale.
abstract: We use non-close packed colloidal lithography to prepare hexagonal magnetic antidot arrays with varying diameters at a period of 205 nm. Smaller antidots are attractive for applications as spin waveguides in magnonics. Larger antidots form a magnetically frustrated system, i.e. Kagome spin-ice, as we prove by magnetic force microscopy. The simple but effective approach successfully extends the limits of top-down lithography previously used to study spin-ice configurations and emergent magnetic monopoles towards smaller structures.
authors: Institut für Festkörperphysik, Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany.
authors: Felix
authors: F
authors: Haering
authors: Ulf
authors: U
authors: Wiedwald
authors: Thomas
authors: T
authors: Häberle
authors: Luyang
authors: L
authors: Han
authors: Alfred
authors: A
authors: Plettl
authors: Berndt
authors: B
authors: Koslowski
authors: Paul
authors: P
authors: Ziemann