| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond V
|
| Presentation Title |
Scanning Tunneling Microscopy for High Entropy Materials |
| Author(s) |
TeYu Chien |
| On-Site Speaker (Planned) |
TeYu Chien |
| Abstract Scope |
High entropy materials, including high entropy alloys (HEAs), high entropy Van der Waals materials, and high entropy oxides, have drawn the attention of scientists and engineers for their various functionalities and properties. While a wide variety of properties are being studied in these materials, microscopic understanding is still challenging. In this talk, I will talk about our recent efforts in using scanning tunneling microscopy (STM) based techniques to study this intriguing material system. Including synchrotron X-ray STM (SX-STM) in which combining the atomic scale spatially resolving STM with the elemental resolving X-ray absorption spectroscopy (XAS) to achieve distinguishing elements at sub-nm scale on the surface of HEA; revealing short-range order and local lattice distortion; identifying elements using dI/dV spectra with assistance of machine learning; and revealing strong correlation physics in the high entropy materials (in HEAs and high entropy transition metal dichalcogenides). |