Journal Article

FZJ-2016-01891

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Experimental and computational study of zero dimensional metallic behavior at the LaLuO3/SrTiO3 interface

Shekhter, P. (Corresponding author) ; Uzan-Saguy, C. ; Schubert, J.FZJ* ; Amouyal, Y. ; Eizenberg, M.

2016
Inst. New York, NY

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Please use a persistent id in citations: doi:10.1116/1.4943570

Abstract: One of the observed and reported phenomena in heterogeneous interfaces of perovskite oxides isthe presence of a two dimensional electron gas (2DEG). In this study, the imperfect interface that isformed between LaLuO3 and SrTiO3 was studied. It was found using x ray diffraction pole figurethat LaLuO3 is deposited on SrTiO3 in a two-domain structure with alternately charged layers parallelto the surface. First-principles calculations reveal that even though the lattices of the two materialsdo not match, an increase of the total potential is found at the interface between the twolattices. Due to this increased potential, electrons are drawn to the interface; since the interface isnot perfectly epitaxial, 2DEG is not formed and instead semicontinuous 0D metallic segmentsprobed by scanning tunneling microscopy and spectroscopy are spread along the interface on theLaLuO3 side. VC 2016 American Vacuum Society. [

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Contributing Institute(s):

1. Halbleiter-Nanoelektronik (PGI-9)
2. JARA-FIT (JARA-FIT)

Research Program(s):

1. 521 - Controlling Electron Charge-Based Phenomena (POF3-521) (POF3-521)

Appears in the scientific report 2016

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Database coverage:
; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; No Authors Fulltext ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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