Delta-doped LaAlO3/SrTiO3 interfaces

被引：37
作者：
Fix, T. [1 ]
MacManus-Driscoll, J. L. [1 ]
Blamire, M. G. [1 ]
机构：
[1] Univ Cambridge, Dept Mat Sci, Cambridge CB2 3QZ, England
来源：
APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 17期
关键词：
cobalt; doping profiles; Hall effect; interface phenomena; lanthanum compounds; manganese; strontium compounds; two-dimensional electron gas; vacancies (crystal); HETEROSTRUCTURES; FERROMAGNETISM; MOBILITY; OXIDES; FILM;
D O I：
10.1063/1.3126445
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The quasi-two-dimensional electron gases formed at the interface between insulators such as SrTiO3/LaAlO3 are predicted to arise from an interfacial electronic reconstruction, but the extent to which oxygen vacancies within the substrate contribute to the conduction remains unclear. We show that delta-doping the interface with transition metal cations dramatically alters the properties and supports the model of a highly two-dimensional charge sheet.
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页数：3
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