Advanced Electron Holography Applied to Electromagnetic Field Study in Materials Science.
Sign Up to like & getrecommendations! Published in 2017 at "Advanced materials"
DOI: 10.1002/adma.201602216
Abstract: Advances and applications of electron holography to the study of electromagnetic fields in various functional materials are presented. In particular, the development of split-illumination electron holography, which introduces a biprism in the illumination system of… read more here.
Keywords: illumination; study; advanced electron; electron holography ... See more keywords
Mapping of the Electrostatic Potentials in a Fully Processed Led Device with nm-Scale Resolution by In Situ off-Axis Electron Holography.
Sign Up to like & getrecommendations! Published in 2023 at "Small methods"
DOI: 10.1002/smtd.202300537
Abstract: The optoelectronic properties of a fully processed red emitting AlGaInP micro-diode device is measured using standard I-V and luminescence measurements. A thin specimen is then prepared for in situ transmission electron microscopy analysis by focused… read more here.
Keywords: electron holography; electron; axis electron; fully processed ... See more keywords
Magnetism of antiphase boundaries in ordered alloys studied using electron holography
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2021.168406
Abstract: Abstract Magnetic anomalies in antiphase boundaries (APBs), which are a type of planar defect produced in ordered crystals, have been studied using electron holography. For many ordered crystals, including a Ni50Mn25Al12.5Ga12.5 alloy with a Heusler-type… read more here.
Keywords: electron holography; antiphase boundaries; studied using; using electron ... See more keywords
In-situ Electron Holography Study of Grain Boundaries in Cerium Oxide
Sign Up to like & getrecommendations! Published in 2018 at "Microscopy and Microanalysis"
DOI: 10.1017/s143192761800781x
Abstract: Charge transport across and along grain boundaries can have profound implications on the macroscopic behavior of materials used in solid oxide fuel cells, batteries as well as other energy technologies. The grain boundary may serve… read more here.
Keywords: grain boundary; situ electron; grain boundaries; grain ... See more keywords
Cavities Imaged by In-Line Electron Holography in Irradiated Aluminium Alloy
Sign Up to like & getrecommendations! Published in 2019 at "Microscopy and Microanalysis"
DOI: 10.1017/s1431927619008511
Abstract: There are a number of operational environments where the performance of materials is likely to be affected significantly by fast-particle irradiation. These include amongst others: fission and fusion reactors, nuclear waste storage containers, particle accelerators,… read more here.
Keywords: cavities imaged; line electron; electron holography;
Magnetic Skyrmion Formation at Lattice Defects and Grain Boundaries Studied by Quantitative Off-Axis Electron Holography.
Sign Up to like & getrecommendations! Published in 2017 at "Nano letters"
DOI: 10.1021/acs.nanolett.6b04280
Abstract: We use in situ Lorentz microscopy and off-axis electron holography to investigate the formation and characteristics of skyrmion lattice defects and their relationship to the underlying crystallographic structure of a B20 FeGe thin film. We… read more here.
Keywords: formation; axis electron; grain boundaries; skyrmion ... See more keywords
Single Electron Precision in the Measurement of Charge Distributions on Electrically Biased Graphene Nanotips Using Electron Holography.
Sign Up to like & getrecommendations! Published in 2019 at "Nano letters"
DOI: 10.1021/acs.nanolett.9b01487
Abstract: We use off-axis electron holography to measure the electrostatic charge density distributions on graphene-based nanogap devices that have thicknesses of between 1 and 10 monolayers and separations of between 8 and 58 nm with a… read more here.
Keywords: single electron; charge; electron; electron precision ... See more keywords
Inversion of the Internal Electric Field due to Inhomogeneous Incorporation of Ge Dopants in GaN/AlN Heterostructures Studied by Off-Axis Electron Holography.
Sign Up to like & getrecommendations! Published in 2023 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c18813
Abstract: The engineering of the internal electric field inside III-nitride devices opens up interesting perspectives in terms of device design to boost the radiative efficiency, which is a pressing need in the ultraviolet and green-to-red spectral… read more here.
Keywords: electric field; internal electric; holography; electron holography ... See more keywords
Exotic Transverse-Vortex Magnetic Configurations in CoNi Nanowires.
Sign Up to like & getrecommendations! Published in 2019 at "ACS nano"
DOI: 10.1021/acsnano.9b07448
Abstract: The magnetic configurations of cylindrical Co-rich CoNi nanowires have been quantitatively analyzed at the nanoscale by electron holography and correlated to local structural and chemical properties. The nanowires display grains of both face-centered cubic (fcc)… read more here.
Keywords: magnetic configurations; exotic transverse; transverse vortex; coni nanowires ... See more keywords
Variability and origins of grain boundary electric potential detected by electron holography and atom-probe tomography
Sign Up to like & getrecommendations! Published in 2020 at "Nature Materials"
DOI: 10.1038/s41563-020-0656-1
Abstract: A number of grain boundary phenomena in ionic materials, in particular, anomalous (either depressed or enhanced) charge transport, have been attributed to space charge effects. Developing effective strategies to manipulate transport behaviour requires deep knowledge… read more here.
Keywords: grain boundary; space charge; grain boundaries; grain ... See more keywords
An electron holography study of perpendicular magnetic tunnel junctions nanostructured by deposition on pre-patterned conducting pillars.
Sign Up to like & getrecommendations! Published in 2020 at "Nanoscale"
DOI: 10.1039/d0nr03353g
Abstract: The fabrication of multi-gigabit magnetic random access memory (MRAM) chips requires the patterning of magnetic tunnel junctions at very small dimensions (sub-30 nm) and a very dense pitch. This remains a challenge due to the… read more here.
Keywords: electron holography; tunnel junctions; magnetic tunnel; tunnel ... See more keywords