We study experimentally the line of a single quantized vortex in a rotating prolate Bose-
Einstein condensate confined by a harmonic potential. In agreement with predictions, we …

High T c superconductors in small magnetic fields directed away from the crystal symmetry
axes have been found to exhibit inhomogeneous chains of flux lines (vortices), in contrast to …

In superconductors, the motion of vortices introduces unwanted dissipation that is disruptive
to applications. Fortunately, material defects can immobilize vortices, acting as vortex …

A gallium (Ga) focused ion beam (FIB) has been applied increasingly to 'site-
specific'preparation of cross-sectional samples for transmission electron microscopy (TEM) …

A new generation of microscopic ratchet systems is currently being developed for controlling
the motion of electrons and fluxons, as well as for particle separation and electrophoresis …

The Aharonov-Bohm effect was conclusively established by a series of our electron
interference experiments, with the help of some advanced techniques, such as coherent …

Fundamental aspects of quantum mechanics, which were discussed only theoretically as
“thought experiments” in the 1920s and 1930s, have begun to frequently show up in …

The superconductor 2H-NbSe2 features vortices with a sixfold star shape when the
magnetic field is applied perpendicular to the plane of the hexagonal crystal structure. This …

We report on the formation process of skyrmion lattice (SkL) domain boundaries in FeGe
using Lorentz transmission electron microscopy and small-angle electron diffraction. We …

In situ transmission electron microscopy provides dynamic observations of the physical
behavior of materials in response to external stimuli such as temperature, gas environment …