Full metadata record
DC Field | Value | Language |
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dc.contributor.author | 한승우 | - |
dc.date.accessioned | 2016-08-29T11:08:55Z | - |
dc.date.available | 2016-08-29T11:08:55Z | - |
dc.date.issued | 2009 | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.other | OAK-5742 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/231980 | - |
dc.description.abstract | In order to establish the density and spatial distribution of charge carriers intrinsic to the n -type LaAlO3 -SrTiO3 heterointerface, we carry out first-principles calculations on the (LaAlO3) n (SrTiO3) 15 slab model with n=2-10. As the thickness of the LaAlO3 layer increases, the charge transfer from LaAlO3 to SrTiO3 converges to half an electron per two-dimensional unit cell. It is found that the electrons in the conduction band of SrTiO3 consist of various types of interface-bound states. The mobile electrons evaluated by excluding those states tightly bound to the interface within 2 nm or having large effective masses are in good agreement with the experimental carrier densities for all LaAlO3 thicknesses, suggesting that the loosely bound states play a major role in the transport property. A large calculation including up to (LaAlO3) 5 (SrTiO3) 30 shows that about 70% of electrons are confined within 3 nm from the interface, which is in good comparison with the experiments. It is found that the transferred electrons decay exponentially at short distances from the interface, but there is a crossover to an algebraically decaying region at ∼4nm. © 2009 The American Physical Society. | - |
dc.language | English | - |
dc.title | Density and spatial distribution of charge carriers in the intrinsic n -type LaAlO3 -SrTiO3 interface | - |
dc.type | Article | - |
dc.relation.issue | 24 | - |
dc.relation.volume | 79 | - |
dc.relation.index | SCI | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.journaltitle | Physical Review B - Condensed Matter and Materials Physics | - |
dc.identifier.doi | 10.1103/PhysRevB.79.245411 | - |
dc.identifier.wosid | WOS:000267699700118 | - |
dc.identifier.scopusid | 2-s2.0-67650091288 | - |
dc.author.google | Son W.-J. | - |
dc.author.google | Cho E. | - |
dc.author.google | Lee B. | - |
dc.author.google | Lee J. | - |
dc.author.google | Han S. | - |
dc.contributor.scopusid | 한승우(55557541900) | - |
dc.date.modifydate | 20211210152321 | - |