Finite size effect and phase diagram of ultra-thin La sub(0.7)Sr sub(0.3)MnO sub(3)

La sub(0.7)Sr sub(0.3)MnO sub(3) (LSMO) ultra-thin films have been grown by pulsed laser deposition in conditions optimized for cation stoichiometry and bulk-like physical properties in the thick limit. Through electrical transport and magnetic measurements, a phase diagram is constructed as a funct...

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Published inSolid state communications Vol. 150; no. 13-14; pp. 598 - 601
Main Authors Kim, Bongju, Kwon, Daeyoung, Song, Jong Hyun, Hikita, Yasuyuki, Kim, Bog G, Hwang, Harold Y
Format Journal Article
LanguageEnglish
Published 01.04.2010
Subjects
Ferromagnetic materials
Film thickness
Insulators
Manganites
Mathematical analysis
Phase diagrams
Physical properties
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Summary:La sub(0.7)Sr sub(0.3)MnO sub(3) (LSMO) ultra-thin films have been grown by pulsed laser deposition in conditions optimized for cation stoichiometry and bulk-like physical properties in the thick limit. Through electrical transport and magnetic measurements, a phase diagram is constructed as a function of film thickness. With decreasing thickness, the LSMO films cross over at high temperatures from a paramagnetic metal to a paramagnetic insulator, and at low temperatures from a ferromagnetic metal to a ferromagnetic insulator, in close similarity to that observed for varying the electronic bandwidth in bulk manganites.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ObjectType-Feature-1
ISSN:0038-1098
DOI:10.1016/j.ssc.2009.12.041