Growth of strontium ruthenate films by hybrid molecular beam epitaxy
- Univ. of California, Santa Barbara, CA (United States). Materials Dept.
We report on the growth of epitaxial Sr2RuO4 films using a hybrid molecular beam epitaxy approach in which a volatile precursor containing RuO4 is used to supply ruthenium and oxygen. The use of the precursor overcomes a number of issues encountered in traditional molecular beam epitaxy that uses elemental metal sources. Phase-pure, epitaxial thin films of Sr2RuO4 are obtained. At high substrate temperatures, growth proceeds in a layer-by-layer mode with intensity oscillations observed in reflection high-energy electron diffraction. Films are of high structural quality, as documented by x-ray diffraction, atomic force microscopy, and transmission electron microscopy. In conclusion, the method should be suitable for the growth of other complex oxides containing ruthenium, opening up opportunities to investigate thin films that host rich exotic ground states.
- Research Organization:
- Univ. of California, Santa Barbara, CA (United States)
- Sponsoring Organization:
- USDOE; US Army Research Office (ARO); Defense Advanced Research Projects Agency (DARPA); Microelectronics Advanced Research Corporation (MARCO)
- Grant/Contract Number:
- FG02-02ER45994; W911NF-16-1-0361
- OSTI ID:
- 1429372
- Alternate ID(s):
- OSTI ID: 1380001
- Journal Information:
- APL Materials, Vol. 5, Issue 9; ISSN 2166-532X
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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SUPERCONDUCTIVITY AND SUPERFLUIDITY
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
materials
metals
microscopy
diffraction optics
metallurgy
solid state chemistry
atomic force microscopy
light diffraction
chemical analysis
transition metals