Back to Search
Start Over
Orthorhombic vs. hexagonal epitaxial SrIrO 3 thin films: Structural stability and related electrical transport properties
- Source :
- Europhysics letters
- Publication Year :
- 2018
- Publisher :
- IOP Publishing, 2018.
-
Abstract
- Metastable orthorhombic SrIrO3 (SIO) is an arch-type spin-orbit coupled material. We demonstrate here a controlled growth of relatively thick (200 nm) SIO films that transform from bulk "6H-type" structure with monoclinic distortion to an orthorhombic lattice by controlling growth temperature. Extensive studies based on high-resolution X-ray diffraction and transmission electron microscopy infer a two distinct structural phases of SIO. Electrical transport reveals a weak temperature-dependent semi-metallic character for both phases. However, the temperature-dependent Hall-coefficient for the orthorhombic SIO exhibits a prominent sign change, suggesting a multiband character in the vicinity of E-F. Our findings thus unravel the subtle structure-property relation in SIO epitaxial thin films. Copyright (C) EPLA, 2018
- Subjects :
- Diffraction
Materials science
Physics
General Physics and Astronomy
02 engineering and technology
021001 nanoscience & nanotechnology
Epitaxy
01 natural sciences
Crystallography
Transmission electron microscopy
Structural stability
Metastability
0103 physical sciences
Orthorhombic crystal system
Thin film
010306 general physics
0210 nano-technology
Monoclinic crystal system
Subjects
Details
- ISSN :
- 12864854 and 02955075
- Volume :
- 122
- Database :
- OpenAIRE
- Journal :
- EPL (Europhysics Letters)
- Accession number :
- edsair.doi.dedup.....feab4c12cbb7cdc5a31edaaa2a1321eb