143 citations · 215 across the 6 of their papers we have counts for
6 papers
Absence of a pressure gap and atomistic mechanism of the oxidation of pure Co nanoparticles
Jaianth Vijayakumar, Tatiana M. Savchenko, David M. Bracher +7
We present a detailed atomistic picture of the oxidation mechanism of Co nanoparticles and its impact on magnetism by experimentally following the evolution of the structure, chemi…
Various Compressed Sensing Set-Ups Evaluated Against Shannon Sampling Under Constraint of Constant Illumination
Wouter Van den Broek, Bryan W. Reed, Armand Béché +3
Under the constraint of constant illumination, an information criterion is formulated for the Fisher information that compressed sensing measurements in optical and transmission el…
Demonstration of a 2x2 programmable phase plate for electrons
Jo Verbeeck, Armand Béché, Knut Müller-Caspary +3
First results on the experimental realisation of a 2x2 programmable phase plate for electrons are presented. The design consists of an array of electrostatic einzel lenses that inf…
Asymmetry and non-dispersivity in the Aharonov-Bohm effect
Maria Becker, Giulio Guzzinati, Béché Armand +2
Decades ago, Aharonov and Bohm showed that electrons are affected by electromagnetic potentials in the absence of forces due to fields. Zeilinger's theorem describes this absence o…
Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams
Giulio Guzzinati, Armand Béché, Hugo Lourenço--Martins +3
Plasmonics, the science and technology of the interaction of light with metallic objects, is fundamentally changing the way we can detect, generate and manipulate light. Although t…
Prospects for versatile phase manipulation in the TEM: beyond aberration correction
Giulio Guzzinati, Laura Clark, Armand Béché +4
In this paper we explore the desirability of a transmission electron microscope in which the phase of the electron wave can be freely controlled. We discuss different existing meth…