Origin of the Two-Dimensional Electron Gas Carrier Density at the LaAlO3 on SrTiO3 Interface
Apstrakt
Transport measurements of the two-dimensional electron gas at the LaAlO3-SrTiO3 interface have found a density of carriers much lower than expected from the polar catastrophe arguments. From a detail density-functional study, we suggest how this discrepancy may be reconciled. We find that electrons occupy multiple subbands at the interface leading to a rich array of transport properties. Some electrons are confined to a single interfacial layer and susceptible to localization, while others with small masses and extended over several layers are expected to contribute to transport.
Izvor:
Physical Review Letters, 2008, 101, 25Finansiranje / projekti:
- U. S. Department of Energy [DE-FG02-00ER45818]
DOI: 10.1103/PhysRevLett.101.256801
ISSN: 0031-9007
PubMed: 19113736
WoS: 000261891200056
Scopus: 2-s2.0-57949100240
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Popović, Zoran S. AU - Satpathy, Sashi AU - Martin, Richard M. PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3595 AB - Transport measurements of the two-dimensional electron gas at the LaAlO3-SrTiO3 interface have found a density of carriers much lower than expected from the polar catastrophe arguments. From a detail density-functional study, we suggest how this discrepancy may be reconciled. We find that electrons occupy multiple subbands at the interface leading to a rich array of transport properties. Some electrons are confined to a single interfacial layer and susceptible to localization, while others with small masses and extended over several layers are expected to contribute to transport. T2 - Physical Review Letters T1 - Origin of the Two-Dimensional Electron Gas Carrier Density at the LaAlO3 on SrTiO3 Interface VL - 101 IS - 25 DO - 10.1103/PhysRevLett.101.256801 ER -
@article{ author = "Popović, Zoran S. and Satpathy, Sashi and Martin, Richard M.", year = "2008", abstract = "Transport measurements of the two-dimensional electron gas at the LaAlO3-SrTiO3 interface have found a density of carriers much lower than expected from the polar catastrophe arguments. From a detail density-functional study, we suggest how this discrepancy may be reconciled. We find that electrons occupy multiple subbands at the interface leading to a rich array of transport properties. Some electrons are confined to a single interfacial layer and susceptible to localization, while others with small masses and extended over several layers are expected to contribute to transport.", journal = "Physical Review Letters", title = "Origin of the Two-Dimensional Electron Gas Carrier Density at the LaAlO3 on SrTiO3 Interface", volume = "101", number = "25", doi = "10.1103/PhysRevLett.101.256801" }
Popović, Z. S., Satpathy, S.,& Martin, R. M.. (2008). Origin of the Two-Dimensional Electron Gas Carrier Density at the LaAlO3 on SrTiO3 Interface. in Physical Review Letters, 101(25). https://doi.org/10.1103/PhysRevLett.101.256801
Popović ZS, Satpathy S, Martin RM. Origin of the Two-Dimensional Electron Gas Carrier Density at the LaAlO3 on SrTiO3 Interface. in Physical Review Letters. 2008;101(25). doi:10.1103/PhysRevLett.101.256801 .
Popović, Zoran S., Satpathy, Sashi, Martin, Richard M., "Origin of the Two-Dimensional Electron Gas Carrier Density at the LaAlO3 on SrTiO3 Interface" in Physical Review Letters, 101, no. 25 (2008), https://doi.org/10.1103/PhysRevLett.101.256801 . .