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Dokumenttyp:
Zeitschriftenartikel / Journal Article
Titel:
Identification of A- and B-site cation vacancy defects in perovskite oxide thin films
Zeitschrift:
Physical Review Letters
Jahrgang:
105
Heftnummer:
22
Jahr:
2010
Sprache:
Englisch
Abstract:
Cation vacancies on both sublattices (VTi, VSr) have been identified in homoepitaxial pulsed laser deposited SrTiO3 films using high intensity variable energy positron annihilation lifetime spectroscopy (PALS) measurements. Film nonstoichiometry was varied by varying laser fluence. PALS showed that on increasing the fluence above the Ti/Sr∼1 value, the concentration ratio [VSr]/[VTi] systematically increased. Reducing the fluence into the Ti-poor region below resulted in additional vacancy clust... »
ISSN:
0031-9007
Article-ID:
226102
Fakultät:
Fakultät für Luft- und Raumfahrttechnik
Institut:
LRT 2 - Institut für angewandte Physik und Messtechnik
Professur:
Dollinger, Günther
Open Access ja oder nein?:
Nein / No
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