Comparison of acid- and non-acid-based surface preparations of Nb-doped SrTiO3 (001)
Abstract
High-resolution angle-resolved photoemission spectroscopy (ARPES) and x-ray photoelectron spectroscopy (XPS) were used to study the relative effectiveness of acid- and non-acid-based surface preparations of Nb-doped SrTiO3 (STO) single crystals. ARPES measurements show that boiling STO in deionized water produces surfaces of similar quality to those etched with buffered HF (Kawasaki method), or HCl/HNO3 (Arkansas method). XPS measurements indicate this water-based surface preparation is more effective than acid-based methods at removing SrOx crystallites and leaving the surface TiO2-terminated.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 29, 2015
- Source ID
- 10.1116/1.4931616
Entities
People
- Agham Posadas
- Alexander A Demkov
- Miri Choi
- Richard C. Hatch
Organizations
- Air Force Office of Scientific Research
- National Science Foundation
- University of Texas at Austin