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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Characterization of Materials through High Resolution Coherent Imaging
Presentation Title Progress towards Dichroic Bragg Coherent Diffractive Imaging
Author(s) Jonathan Logan, Ross Harder, Luxi Li, Daniel Haskel, Daniel Rosenmann, Martin Holt, Yihua Liu, Tenzin Sangpo, Robert Winarski, Ian McNulty
On-Site Speaker (Planned) Jonathan Logan
Abstract Scope Magnetization is coupled to the atomic lattice strain in crystals by the magnetoelastic energy. X-ray diffraction methods are powerful tools for study of magnetism and lattice strain, however there are currently no tools for measuring these properties simultaneously at the nanoscale, where local strain fields can influence magnetic domain configurations. By combining x-ray magnetic circular dichroism and Bragg coherent diffractive imaging methods, it should be possible to image nanoscale strain and magnetization at the same time, with a single measurement. We are developing dichroic BCDI techniques for imaging strain and magnetization simultaneously, in two and three dimensions, in isolated magnetic nanocrystals and magnetic thin films. We use circularly polarized x-rays produced by a diamond x-ray phase retarder to gain sensitivity to magnetism. To quantify the feasibility of these methods we are testing them with novel magnetic material systems such as faceted Cobalt-Platinum nanocrystals and tungsten-encapsulated Gadolinium nanocrystals.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Imaging of High-pressure Induced Deformation Twinning in a Nanocrystal
3D X-ray Imaging of Defect Dynamics in Nanostructured Materials
Anisotropic Growth Patterns in Four Dimensions
Applications of High Resolution Coherent X-Ray Imaging Techniques for Investigating Additively Manufactured Materials
Biological and Bio-inspired Multifunctional Structural Materials
Biological Imaging Using Combined Ptychography and X-ray Fluorescence
Biomimetic CaCO3 Complex Morphologies Studied by Coherent X-ray Diffraction Imaging
Characterizing Evolving Processes through Coupled CDI and Molecular Dynamics Studies
Coherent Diffractive Imaging with Wavelength Spatial Resolution using 13.5nm High Harmonics: Full Field, High-contrast Imaging on a Tabletop
Coherent X-ray Diffraction Measurements of Lattice Distortions Caused by Ion Bombardment
Coherent X-ray Imaging at Future High Brightness Synchrotron Sources
High Resolution Coherent Imaging for Materials
High Speed Tomographic Imaging of Materials during Uniaxial Loading
Imaging Strain Fields by Ptychographic Topography
In-Situ and In-Operando Examination of Structure-Functional Relations in Porous Materials for Energy Conversion and Storage with Nano- and Micro- Synchrotron X-ray Computed Tomography
In-situ Deformation and Damage Assessment in Materials under Dynamic Loading Using High Speed Synchrotron X-ray Phase Contrast Imaging
In-situ Phase Contrast Nano-tomography at ID16B
Nanoscale 4D Microstructural Evolution of Precipitates in Aluminum Alloys Using Transmission X-Ray Microscopy (TXM)
Nanoscale Chemical Imaging of an Individual Catalyst Particle with Soft X-ray Ptychography
Phase Contrast Tomography to Document Gypsum Dehydration in Single Crystals and Polycrystalline Materials
Photoelastic Ptychography: A New Approach for Quantitative Stress Determination
Polychromatic Bragg Coherent X-ray Diffraction Imaging for Rapid Measurements
Progress towards Dichroic Bragg Coherent Diffractive Imaging
Real-time Direct and Diffraction Hard X-ray Imaging of Ultra-fast Processes
Revolutions in Coherent X-ray Sources Will Enable Dynamic Nanometer Scale Strain Imaging in Structural Materials
Soft-X-ray Ptychographic Imaging of Shale
Some Recent Advances in the Theory and Modeling of Phase Contrast Imaging
Speckle-based X-ray Imaging at Diamond Light Source
Unraveling the Structure-function Relationships in Ion Implanted Nanodiamonds
Zernike Phase Contrast for Hard X-ray Microscopy

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