O deficient LaAlO3/SrTiO3(110) and (001) superlattices under hydrostatic pressure: a comparative first principles study

Handle URI:
http://hdl.handle.net/10754/623876
Title:
O deficient LaAlO3/SrTiO3(110) and (001) superlattices under hydrostatic pressure: a comparative first principles study
Authors:
Albar, Arwa ( 0000-0001-7547-5105 ) ; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
We compare the electronic properties of O deficient LaAlO3/SrTiO3 superlattices oriented along the (001) and (110) directions, taking into account the effect of hydrostatic compression and tension. Interfacial O vacancies turn out to be less likely in the case of the (110) orientation, with compression (tension) reducing (enhancing) the energy cost for both orientations. The presence of O vacancies results in the formation of a two-dimensional electron gas, for which we observe a distinct spatial pattern of carrier density that depends strongly on the amount of applied pressure. We clarify the interrelation between structural features and the properties of this electron gas (confinement, carrier density, and mobility).
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Albar A, Schwingenschlögl U (2017) O deficient LaAlO3/SrTiO3(110) and (001) superlattices under hydrostatic pressure: a comparative first principles study. J Mater Chem C 5: 3336–3342. Available: http://dx.doi.org/10.1039/c6tc05627j.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
J. Mater. Chem. C
Issue Date:
17-Mar-2017
DOI:
10.1039/c6tc05627j
Type:
Article
ISSN:
2050-7526; 2050-7534
Sponsors:
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). For computer time, this research used the resources of the Supercomputing Laboratory at KAUST.
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2017/TC/C6TC05627J#!divAbstract
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAlbar, Arwaen
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2017-05-31T11:23:11Z-
dc.date.available2017-05-31T11:23:11Z-
dc.date.issued2017-03-17en
dc.identifier.citationAlbar A, Schwingenschlögl U (2017) O deficient LaAlO3/SrTiO3(110) and (001) superlattices under hydrostatic pressure: a comparative first principles study. J Mater Chem C 5: 3336–3342. Available: http://dx.doi.org/10.1039/c6tc05627j.en
dc.identifier.issn2050-7526en
dc.identifier.issn2050-7534en
dc.identifier.doi10.1039/c6tc05627jen
dc.identifier.urihttp://hdl.handle.net/10754/623876-
dc.description.abstractWe compare the electronic properties of O deficient LaAlO3/SrTiO3 superlattices oriented along the (001) and (110) directions, taking into account the effect of hydrostatic compression and tension. Interfacial O vacancies turn out to be less likely in the case of the (110) orientation, with compression (tension) reducing (enhancing) the energy cost for both orientations. The presence of O vacancies results in the formation of a two-dimensional electron gas, for which we observe a distinct spatial pattern of carrier density that depends strongly on the amount of applied pressure. We clarify the interrelation between structural features and the properties of this electron gas (confinement, carrier density, and mobility).en
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). For computer time, this research used the resources of the Supercomputing Laboratory at KAUST.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2017/TC/C6TC05627J#!divAbstracten
dc.titleO deficient LaAlO3/SrTiO3(110) and (001) superlattices under hydrostatic pressure: a comparative first principles studyen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJ. Mater. Chem. Cen
kaust.authorAlbar, Arwaen
kaust.authorSchwingenschlögl, Udoen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.