Abstract
The conductance confined at the interface of complex oxide heterostructures
provides new opportunities to explore nanoelectronic as well as nanoionic devices. Herein we
show that metallic interfaces can be realized in SrTiO3-based heterostructures with various
insulating overlayers of amorphous LaAlO3, SrTiO3, and yttria-stabilized zirconia films. On the
other hand, samples of amorphous La7/8Sr1/8MnO3 films on SrTiO3 substrates remain insulating.
The interfacial conductivity results from the formation of oxygen vacancies near the interface,
suggesting that the redox reactions on the surface of SrTiO3 substrates play an important role.
Original language | English |
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Journal | Nano Letters |
Volume | 11 |
Issue number | 9 |
Pages (from-to) | 3774-3778 |
ISSN | 1530-6984 |
DOIs | |
Publication status | Published - 2011 |
Keywords
- Solid Oxide Fuel Cells