Abstract
The lanthanide scandate materials are widely used substrates for thin film growth and the potential applications of the LnScO3 materials continue to grow with the recent ability to synthesize them as cuboidal faceted nanoparticles. A comprehensive understanding of the surface structure and chemistry of these oxides is essential for their informed application, either as single crystal or high surface area nanoparticle substrates. Here the {100} pseudocubic surfaces of LnScO3 (Ln=La, Nd, Sm, Gd) nanoparticles were examined with aberration-corrected electron microscopy and higher-level density functional theory to reveal ScOx rich terminations across all investigated surfaces. Mixed terminations of single and double layer nature were observed, indicating the presence of multiple domains at the surface and introducing the possibility of synthetically controlling the surface reconstruction in the future.
| Original language | English (US) |
|---|---|
| Article number | 125002 |
| Journal | Physical Review Materials |
| Volume | 5 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2021 |
Funding
This research was supported by funding from the Northwestern University Institute for Catalysis in Energy Processes (ICEP) from Grant No. DOE DE-FG02-03ER15457. Use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
ASJC Scopus subject areas
- General Materials Science
- Physics and Astronomy (miscellaneous)