Electron holography for fields in solids: Problems and progress

A flexible multi-stimuli in situ (S)TEM: Concept, optical performance, and outlook

“…In electron microscopy, the fully quantifiable image wave can be recorded only by an interferometric technique, i.e. offaxis electron holography [10]. For the in situ investigation of physical phenomena the quantitative mapping of potential field distributions by means of electron holography is indispensable.…”

Transfer and reconstruction of the density matrix in off-axis electron holography

“…In the off-axis type Contents lists available at ScienceDirect journal homepage: www.elsevier.com/locate/ultramic electron holography [35], the Möllenstedt biprism realizes a superposition of two partial waves in the image plane, which are separated by a certain distance in the object plane [36]. Thus, the resulting interference fringe pattern contains correlations of the wave field measurable in terms of local interference fringe contrast and phase shift with respect to a reference [37,35,38,39]. Especially, inelastically scattered electrons attenuate characteristically the fringe contrast, which was studied by means of inelastic electron holography in past [40][41][42][43][44].…”

“…Fitted angular width of scattering Δϑ tangential to the surface in dependence on distance to the edge y(39). For the solid curve we used the mean values for the parameters γ and y 0 represented in…”

Towards Induction Mapping of the 3D Spin Texture of Skyrmions

“…Unfortunately, little is known about the 3D structure of skyrmions [4,5], ubiquitous in thin film technology. Here, we bridge that gap by combining the concept of the transport of intensity equation (TIE) [6], focal series in-line electron holography (EH), and off-axis EH [7] to quantitatively reconstruct the projected magnetic field pertaining to both the helical and the skyrmion lattice phase in single crystal nanoparticles of the isotropic chiral magnet Fe0.95Co0.05Ge.The skyrmion phase in Fe0.95Co0.05Ge particles ( Fig. 1 (b)) was investigated using a double corrected FEI Titan³ 80-300 microscope operated in image corrected Lorentz mode.…”