Journal
APPLIED PHYSICS LETTERS
Volume 105, Issue 22, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4902970
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Funding
- MEXT of Japan
- Elements Strategy Initiative for Structural Materials (ESISM) via MEXT by Japan
- JSPS
- NSFC [11332013]
- CAS under the Japan-China Scientific Cooperation Program
- Murata Science Foundation
- [26820288]
- [24686069]
- Grants-in-Aid for Scientific Research [26820288] Funding Source: KAKEN
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We have determined the atomic-scale structure of the SrNbO3/SrNbO3.4 interface and related it to the electronic structure. Experimentally, transmission electron microscopy observations reveal that SrNbO3 and SrNbO3.4 show orientation relationships [(1) over bar 10](SrNbO3) // [010](SrNbO3.4) and (110)(SrNbO3) // (001)(SrNbO3.4), and that their interface is coherent and atomically abrupt. Theoretically, this interface is found to be strongly anisotropic in electronic structure, and takes on quasi-one-dimensional nature. We also find that the interface impacts greatly the electron occupation of Nb d orbitals, particularly d(z)(2) orbital. The combined study represents a relevant advance in atomically bridging structures to properties of heterointerfaces. (c) 2014 AIP Publishing LLC.
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