Superconductivity at the LaAlO3/SrTiO3interface
| Main Authors: | Gariglio, S., Reyren, N., Caviglia, A. D., Triscone, J.-M. |
|---|---|
| Format: | Article Journal |
| Terbitan: |
, 2009
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| Online Access: |
https://zenodo.org/record/898003 |
Daftar Isi:
- We report on the structural characterization of LaAlO3/SrTiO3 interfaces and on their transport properties. LaAlO3 films were prepared using pulsed laser deposition onto TiO2 terminated (001) SrTiO3 substrates inducing a metallic conduction at the interface. Resistance and Hall effect measurements reveal a sheet carrier density between 0.4 and 1.2·10 14 electrons/cm 2 at room temperature and mobility of ∼ 300 cm 2 V −1 s −1 at low temperatures. A transition to a superconducting state is observed at a temperature of ∼ 200 mK. The superconducting characteristics display signatures of 2D superconductivity.