eprintid: 1330864
rev_number: 37
eprint_status: archive
userid: 608
dir: disk0/01/33/08/64
datestamp: 2011-11-21 13:57:02
lastmod: 2021-10-04 00:10:04
status_changed: 2011-11-21 13:57:02
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Chambers, SA
creators_name: Qiao, L
creators_name: Droubay, TC
creators_name: Kaspar, TC
creators_name: Arey, BW
creators_name: Sushko, PV
title: Band Alignment, Built-In Potential, and the Absence of Conductivity at the LaCrO3/SrTiO3(001) Heterojunction
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
keywords: INTERFACES
note: © 2011 American Physical Society
abstract: Core-level and valence-band x-ray photoemission spectra measured for molecular-beam-epitaxy-grown LaCrO3/SrTiO3(001) yield band offsets and potential gradients within the LaCrO3 sufficient to trigger an electronic reconstruction to alleviate the polarity mismatch. Yet, the interface is insulating. Based on first principles calculations, we attribute this unexpected result to interfacial cation mixing combined with charge redistribution within CrO2 layers, enabled by low-lying d states within LaCrO3, which suppresses an electronic reconstruction.
date: 2011-11-07
publisher: AMER PHYSICAL SOC
official_url: http://dx.doi.org/10.1103/PhysRevLett.107.206802
vfaculties: VMPS
oa_status: green
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_batch
elements_source: Web of Science
elements_id: 351620
doi: 10.1103/PhysRevLett.107.206802
lyricists_name: Sushko, Peter
lyricists_id: PVSOU85
full_text_status: public
publication: PHYS REV LETT
volume: 107
number: 20
article_number: 206802
issn: 0031-9007
citation:        Chambers, SA;    Qiao, L;    Droubay, TC;    Kaspar, TC;    Arey, BW;    Sushko, PV;      (2011)    Band Alignment, Built-In Potential, and the Absence of Conductivity at the LaCrO3/SrTiO3(001) Heterojunction.                   PHYS REV LETT , 107  (20)    , Article 206802.  10.1103/PhysRevLett.107.206802 <https://doi.org/10.1103/PhysRevLett.107.206802>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1330864/1/1330864.pdf