A route to ultrathin quantum gases at polar perovskite heterointerfaces

Handle URI:
http://hdl.handle.net/10754/562323
Title:
A route to ultrathin quantum gases at polar perovskite heterointerfaces
Authors:
Nazir, Safdar; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
Oxide interfaces are attracting interest in recent years due to special functionalities of two-dimensional quantum gases. However, with typical thicknesses of at least 10-12 Å the gases still extend considerably in the third dimension, which compromises the size of quantum effects. To overcome this limitation, we propose incorporation of highly electronegative cations, such as Ag. By ab initio calculations, we demonstrate the formation of a mobile two-dimensional hole gas in AgNbO 3/SrTiO 3 that is confined to an ultrathin slab of only 5.6 Å thickness. Electronegative cations therefore are a promising way to enhance the quantum nature of hole gases. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Computational Physics and Materials Science (CPMS)
Publisher:
Wiley-Blackwell
Journal:
physica status solidi (RRL) - Rapid Research Letters
Issue Date:
7-Sep-2012
DOI:
10.1002/pssr.201206354
Type:
Article
ISSN:
18626254
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Computational Physics and Materials Science (CPMS)

Full metadata record

DC FieldValue Language
dc.contributor.authorNazir, Safdaren
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2015-08-03T10:00:53Zen
dc.date.available2015-08-03T10:00:53Zen
dc.date.issued2012-09-07en
dc.identifier.issn18626254en
dc.identifier.doi10.1002/pssr.201206354en
dc.identifier.urihttp://hdl.handle.net/10754/562323en
dc.description.abstractOxide interfaces are attracting interest in recent years due to special functionalities of two-dimensional quantum gases. However, with typical thicknesses of at least 10-12 Å the gases still extend considerably in the third dimension, which compromises the size of quantum effects. To overcome this limitation, we propose incorporation of highly electronegative cations, such as Ag. By ab initio calculations, we demonstrate the formation of a mobile two-dimensional hole gas in AgNbO 3/SrTiO 3 that is confined to an ultrathin slab of only 5.6 Å thickness. Electronegative cations therefore are a promising way to enhance the quantum nature of hole gases. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.publisherWiley-Blackwellen
dc.subjectHole gasen
dc.subjectInterfacesen
dc.subjectPerovskitesen
dc.titleA route to ultrathin quantum gases at polar perovskite heterointerfacesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentComputational Physics and Materials Science (CPMS)en
dc.identifier.journalphysica status solidi (RRL) - Rapid Research Lettersen
kaust.authorNazir, Safdaren
kaust.authorSchwingenschlögl, Udoen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.