Both classical and quantum waves can form vortices: entities with helical phase fronts and
circulating current densities. These features determine the intrinsic orbital angular …

The recent prediction and subsequent creation of electron vortex beams in a number of
laboratories occurred after almost 20 years had elapsed since the recognition of the physical …

Structured light refers to the generation and application of custom light fields. As the tools
and technology to create and detect structured light have evolved, steadily the applications …

The quantized orbital angular momentum (OAM) of photons offers an additional degree of
freedom and topological protection from noise. Photonic OAM states have therefore been …

Free electrons can possess an intrinsic orbital angular momentum, similar to those in an
electron cloud, upon free-space propagation. The wave front corresponding to the electron's …

Accelerating a free electron to high‐energy forms the basis for studying particle and nuclear
physics. Here it is shown that the wave function of such an energetic electron can be further …

In order to obtain a fundamental understanding of the interplay between charge, spin, orbital
and lattice degrees of freedom in magnetic materials and to predict and control their physical …

Over the past two decades, continued improvements in instrumentation hardware [1] as well
as the increased accessibility to high-performance computing (HPC) resources [2], and more …

Rapid development of magnetic nanotechnologies calls for experimental techniques
capable of providing magnetic information with subnanometre spatial resolution. Available …

Elastic scattering of electron vortex beams on magnetic materials leads to a weak magnetic
contrast due to Zeeman interaction of orbital angular momentum of the beam with magnetic …