Novel synthesis approach for “stubborn” metals and metal oxides
Abstract
Atomically precise complex oxides containing “stubborn” elements, such as ruthenium, iridium, and platinum, hold tremendous promise as designer quantum materials for exploring novel electronic, magnetic, superconducting, and topological phases owing to their strong spin–orbit interaction. This study shows a method to synthesize such materials by eliminating the major synthesis bottleneck of low vapor pressure and difficulty in oxidation. This study serves as a “proof-of-concept” allowing us to 1) grow Pt, RuO 2 , and SrRuO 3 thin films by supplying Pt and Ru precursors at 65 to 100 °C in a low-temperature effusion cell, as opposed to the several thousand degrees Celsius needed using electron beam evaporators; 2) reveal bulk-like room-temperature resistivity; and 3) ultimately provide pathways to creating atomically precise quantum structures.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 05, 2021
- Source ID
- 10.1073/pnas.2105713118
Entities
People
- Anil Rajapitamahuni
- Anusha Kamath Manjeshwar
- Bharat Jalan
- Jin Yue
- Tristan K. Truttmann
- William Nunn
Organizations
- Air Force Office of Scientific Research
- United States Department of Energy
- University of Minnesota