| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Christensen, Dennis Valbjørn
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Perspectives on oxide heterostructures – the curious case of γ-Al 2 O 3 /SrTiO 3citations
- 2023Reconstruction of Low Dimensional Electronic States by Altering the Chemical Arrangement at the SrTiO3 Surfacecitations
- 2023Perspectives on oxide heterostructures – the curious case of γ-Al2O3/SrTiO3citations
- 2022On the thermoelectric properties of Nb-doped SrTiO 3 epitaxial thin filmscitations
- 2022Freestanding Perovskite Oxide Filmscitations
- 2019Electrical, magnetic and magnetotransport properties of Na and Mo doped Ca3Co4O9 materialscitations
- 2019Electrical, magnetic and magnetotransport properties of Na and Mo doped Ca 3 Co 4 O 9 materialscitations
- 2019Diluted Oxide Interfaces with Tunable Ground Statescitations
- 2018Exploring magnetic and electronic properties in γ-Al2O3/SrTiO3
- 2018Exploring magnetic and electronic properties in γ-Al 2 O 3 /SrTiO 3
- 2018High-temperature thermoelectric properties of Na- and W-Doped Ca3Co4O9 system citations
- 2017Microscopic origin of the mobility enhancement at a spinel/perovskite oxide heterointerface revealed by photoemission spectroscopycitations
- 2016Scandium-doped zinc cadmium oxide as a new stable n-type oxide thermoelectric materialcitations
- 2012On the origin of metallic conductivity at the interface of LaAlO3/SrTiO3citations
- 2012Resistance switching of the interfacial conductance in amorphous SrTiO3 heterostructures
Places of action
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article
On the origin of metallic conductivity at the interface of LaAlO3/SrTiO3
Abstract
To determine the origin of the quasi-two-dimensional electron gas formed at the interface between the two complex oxides of LaAlO3 (LAO) and SrTiO3 (STO), various amorphous films of LAO, La2O3, Al2O3, and La7/8Sr1/8MnO3 (LSMO), were deposited on TiO2-terminated (0 0 1) STO substrates by pulsed laser deposition at room temperature. Metallic interfaces are observed when the over-layers are amorphous LAO, La2O3, or Al2O3, while insulating interfaces are observed when the over-layer is LSMO. The interfacial conductivity of these SrTiO3-based hetero-structures shows strong dependence on both film thickness and oxygen pressure during film growth. The possible origin for the occurrence of metallic interfaces in these complex oxide hetero-structures due to redox reactions at the STO substrate surface is discussed. A thermodynamic criterion for designing either metallic or insulating interfaces between complex oxides is proposed.