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Modulation of conductance and superconductivity by top-gating in LaAIO3/SrTiO3 2-dimensional electron systems
- Source :
- Applied physics letters, 103(20):201603. American Institute of Physics, Applied Physics Letters, Applied Physics Letters, American Institute of Physics, 2013, 103 (20), pp.201603. ⟨10.1063/1.4829555⟩
- Publication Year :
- 2013
-
Abstract
- We report the electrical top-gating of a 2-dimensional electron gas (2DEG) formed at the LaAlO3/SrTiO3 interface, using electron-beam evaporated Au gate electrodes. In these structures, epitaxial LaAlO3 films grown by pulsed laser deposition induce the 2DEGs at the interface to the SrTiO3 substrate and simultaneously act as the gate dielectric. The structured top-gates enable a local tuning and complete on/off switching of the interface (super)-conductivity, while maintaining the usual, intrinsic characteristics for these LaAlO3/SrTiO3 interfaces when no gate voltage is applied.
- Subjects :
- Materials science
Physics and Astronomy (miscellaneous)
Gate dielectric
FOS: Physical sciences
02 engineering and technology
Substrate (electronics)
Electron
Epitaxy
01 natural sciences
Pulsed laser deposition
Superconductivity (cond-mat.supr-con)
0103 physical sciences
[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat]
010306 general physics
ComputingMilieux_MISCELLANEOUS
Superconductivity
Condensed Matter - Materials Science
business.industry
Condensed Matter - Superconductivity
Materials Science (cond-mat.mtrl-sci)
Conductance
021001 nanoscience & nanotechnology
Electrode
Optoelectronics
0210 nano-technology
business
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Database :
- OpenAIRE
- Journal :
- Applied physics letters, 103(20):201603. American Institute of Physics, Applied Physics Letters, Applied Physics Letters, American Institute of Physics, 2013, 103 (20), pp.201603. ⟨10.1063/1.4829555⟩
- Accession number :
- edsair.doi.dedup.....8a53238dd862bb1ceaa20ebc004bf14c