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Nondestructive clea...
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Andersson, Eric,1992Chalmers tekniska högskola,Chalmers University of Technology
(författare)
Nondestructive cleaning of the LaAlO3/SrTiO3 surface with ultraviolet light and ozone
- Artikel/kapitelEngelska2016
Förlag, utgivningsår, omfång ...
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American Vacuum Society,2016
Nummerbeteckningar
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LIBRIS-ID:oai:research.chalmers.se:e45928d8-6be5-4a0d-8dc2-496d8950532c
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https://research.chalmers.se/publication/233632URI
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https://doi.org/10.1116/1.4944660DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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The effect of ultraviolet light produced ozone and irradiation (UV/ozone) cleaning on the surface properties and interface electrical properties of 4 unit cell (uc) LaAlO3/SrTiO3 samples is examined. A standard photolithography process is used to contaminate the samples which are then cleaned in UV/ozone. Atomic force microscopy measurements show that the photoresist contaminated samples can be cleaned efficiently using this method. The surface roughness of the cleaned samples is comparable to that of the as-grown samples. Furthermore, electrical transport measurements show that the mobility decreases and the sheet carrier density increases for the contaminated samples, which also display indications of an onset to the Kondo effect. By removing the contaminants with UV/ozone cleaning, the mobility and sheet carrier density can be partially restored toward the as-grown values. The mobility is increased by about two times from approximate to 1000 cm(2) V-1 s(-1) for the contaminated samples to approximate to 2000 cm(2) V-1 s(-1) for the ozone cleaned ones. (C) 2016 American Vacuum Society.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Aurino, Pier Paolo,1985Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)aurino
(författare)
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Winkler, Dag,1957Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)winkler1
(författare)
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Kalaboukhov, Alexei,1975Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ascry
(författare)
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Chalmers tekniska högskola
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics: American Vacuum Society34:42166-27462166-2754
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