Improving our experimental and theoretical knowledge of electric potentials at liquid-solid
boundaries is essential to achieve a deeper understanding of the driving forces behind …

The distribution and movement of charge is fundamental to many physical phenomena,
particularly for applications involving nanoparticles, nanostructures, and electronic devices …

Stray electric fields in free space generated by two biased gold needles have been
quantified in comprehensive finite-element (FE) simulations, accompanied by first moment …

We propose a method for sorting electrons by orbital angular momentum (OAM). Several
methods now exist to prepare electron wavefunctions in OAM states, but no technique has …

In this paper we prove that any conformal transformation of a wave can be produced via a
suitably arranged cascade of two, or at most four, discrete phase elements satisfying …

Electrical resistivity is the key parameter in the active regions of many current nanoscale
devices, from memristors to resistive random-access memory and phase-change memories …

There is a growing interest in the flexoelectric effect, since at the nanoscale it is predicted to
be very large. However, there have been no direct observations of flexoelectric bending …

The orbital angular momentum (OAM) sorter is a new electron optical device for measuring
an electron's OAM. It is based on two phase elements, which are referred to as the …

We apply off-axis electron holography and Lorentz microscopy in the transmission electron
microscope to map the electric field generated by a sharp biased metallic tip. A combination …

The phase-resolved imaging of confined light fields by homodyne detection is a cornerstone
of metrology in nano-optics and photonics, but its application in electron microscopy has …