Suppression of the critical thickness threshold for conductivity at the LaAlO3/SrTiO3 interface
✍ Scribed by Lesne, E.; Reyren, N.; Doennig, D.; Mattana, R.; Jaffrès, H.; Cros, V.; Petroff, F.; Choueikani, F.; Ohresser, P.; Pentcheva, R.; Barthélémy, A.; Bibes, M.
- Book ID
- 125510742
- Publisher
- Nature Publishing Group
- Year
- 2014
- Tongue
- English
- Weight
- 830 KB
- Volume
- 5
- Category
- Article
- ISSN
- 2041-1723
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## Abstract When insulator LaAlO~3~ is grown by epitaxy onto a TiO~2~‐terminated {100} surface of insulator SrTiO~3~, the system obtained has a metallic character. This phenomenon has been associated with an electrostatic frustration at the interface, as {100} surfaces of SrTiO~3~ are neutral while
## Abstract Polar interfaces, if abrupt, theoretically create diverging electro‐static potentials. In practice, atomic or electronic reconstructions occur. In the case of the polar (001) interface between the insula‐tors LaAlO~3~ and SrTiO~3~ pictured here, such reconstructions may be the origin of