Concurrent multi-peak Bragg coherent x-ray diffraction imaging of 3D nanocrystal lattice displacement via global optimization

S Maddali, TD Frazer, N Delegan, KJ Harmon… - npj Computational …, 2023 - nature.com
In this paper we demonstrated a method to reconstruct vector-valued lattice distortion fields
within nanoscale crystals by optimization of a forward model of multi-reflection Bragg …

Anomalous glide plane in platinum nano-and microcrystals

MI Richard, S Labat, M Dupraz, J Carnis, L Gao… - ACS …, 2023 - ACS Publications
At the nanoscale, the properties of materials depend critically on the presence of crystal
defects. However, imaging and characterizing the structure of defects in three dimensions …

Bragg coherent diffractive imaging for defects analysis: Principles, applications, and challenges

Y Sun, A Singer - Chemical Physics Reviews, 2024 - pubs.aip.org
The ability to visualize crystalline defects and lattice distortions at the nanoscale holds
profound implications for enhancing material properties and optimizing their design. Bragg …

3D bragg coherent diffraction imaging of extended nanowires: defect formation in highly strained InGaAs quantum wells

MO Hill, P Schmiedeke, C Huang, S Maddali, X Hu… - ACS …, 2022 - ACS Publications
InGaAs quantum wells embedded in GaAs nanowires can serve as compact near-infrared
emitters for direct integration onto Si complementary metal oxide semiconductor technology …

Three-dimensional strain imaging of irradiated chromium using multi-reflection Bragg coherent diffraction

E Jossou, TA Assefa, AF Suzana, L Wu… - npj Materials …, 2022 - nature.com
Radiation-induced materials degradation is a key concern in limiting the performance of
nuclear materials. The formation of nanoscale void and gas bubble superlattices in metals …

Automated defect identification in coherent diffraction imaging with smart continual learning

O Yildiz, K Raghavan, H Chan, MJ Cherukara… - Neural Computing and …, 2024 - Springer
X-ray Bragg coherent diffraction imaging is a powerful technique for 3D materials
characterization. However, obtaining X-ray diffraction data is difficult and computationally …

Imaging defects in vanadium (III) oxide nanocrystals using Bragg coherent diffractive imaging

Z Barringer, J Jiang, X Shi, E Schold, A Pateras… - …, 2021 - pubs.rsc.org
Defects in strongly correlated materials such as V2O3 play influential roles on their electrical
properties. Understanding the defects' structure is of paramount importance. In this project …

Automated continual learning of defect identification in coherent diffraction imaging

O Yildiz, H Chan, K Raghavan, W Judge… - 2022 IEEE/ACM …, 2022 - ieeexplore.ieee.org
X-ray Bragg coherent diffraction imaging (BCDI) is widely used for materials
characterization. However, obtaining X-ray diffraction data is difficult and computationally …

[HTML][HTML] Bragg coherent diffractive imaging of ferromagnetic nickel nanoparticles

JW Kim, S Manna, R Harder, J Wingert… - Journal of Applied …, 2018 - pubs.aip.org
We synthesized Ni nanoparticles with an atmospheric-thermal chemical vapor deposition
method and investigated their lattice distortions and defects using Bragg coherent diffractive …

A differentiable forward model for the concurrent, multi-peak Bragg coherent x-ray diffraction imaging problem

S Maddali, TD Frazer, N Delegan, KJ Harmon… - arxiv preprint arxiv …, 2022 - arxiv.org
We present a general analytic approach to spatially resolve the nano-scale lattice distortion
field of strained and defected compact crystals with Bragg coherent x-ray diffraction imaging …