About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Autonomous Platforms for Designing and Understanding Materials
|
| Presentation Title |
Towards Autonomous Imaging and Analysis of Magnetic Domains |
| Author(s) |
Charudatta Phatak, Hanu Arava, Emine Begum Gulsoy |
| On-Site Speaker (Planned) |
Charudatta Phatak |
| Abstract Scope |
Direct real-space imaging of magnetic domain wall behavior in patterned thin films under external stimuli can enable understanding the underlying energy landscape governing their behavior as well as the role of local microstructure and defects. Often times the data analysis and control of experiments is done after the data is collected. In this work, we will present an automated workflow for in-situ Lorentz transmission electron microscopy to image magnetic domain walls and domain textures at nanometer scale spatial resolution. Using our workflow, we were able to image the domain wall motion with sub-millisecond time resolution giving insight into transformation of transverse magnetic domain walls under applied magnetic fields. We will present and discuss extension of these methods to other in-situ experiments including application of electric currents, and variation of temperature, as well as incorporation of machine-learning models for real-time magnetic domain analysis. |