Frustration, the presence of competing interactions, is ubiquitous in the physical sciences
and is a source of degeneracy and disorder, which in turn gives rise to new and interesting …

Reducing the dimensionality of a physical system can have a profound effect on its
properties, as in the ordering of low-dimensional magnetic materials, phonon dispersion in …

Artificial spin ice has been the subject of extensive investigation in the last few years due to
advances in nanotechnology and characterization techniques. So far, most of the studies …

We have studied frustrated kagome arrays and unfrustrated honeycomb arrays of
magnetostatically interacting single-domain ferromagnetic islands with magnetization …

Artificial spin ice is a frustrated magnetic two-dimensional nano-material, recently employed
to study variety of tailor-designed unusual collective behaviours. Recently proposed …

We report a magneto-optical Kerr effect study of the collective magnetic response of artificial
square spin ice, a lithographically defined array of single-domain ferromagnetic islands. We …

The low-energy magnetic configurations of artificial, frustrated classical spin chains are
investigated using magnetic force microscopy and micromagnetic simulations. Contrary to …

We have investigated the response of brickwork artificial spin ice to an applied in-plane
magnetic field through magnetic force microscopy, magnetotransport measurements, and …

We investigate the recently reported analogies between pinned vortices in nano-structured
superconductors or colloids in optical traps, and spin ice materials. It has been found …

Originally detected in rare earth pyrochlores, spin ice physics is now being artificially
extended to a variety of geometries that control collective behavior and exotic properties …