Multiferroic properties of Dy modified BiFeO3 thin films in comparison with Tb modified BiFeO3 thin films

Coexistence of ferroelectric and ferromagnetic order parameters was observed at room temperature in Bi0.6Dy0.3La0.1FeO3 thin films grown on Pt/TiO2/SiO2/Si substrates using a pulsed laser deposition technique similar to that for Bi0.6Tb0.3La0.1FeO3. The coexistence of ferroelectric and magnetic doma...

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Bibliographic Details
Published inJournal of materials research Vol. 22; no. 8; pp. 2068 - 2073
Main Authors Palkar, V.R., Anisha, R., Pinto, R., Bhattacharya, S.
Format Journal Article
LanguageEnglish
Published New York, USA Cambridge University Press 01.08.2007
Subjects
Ferroelectricity
Ferromagnetic
Film
Ferroelectricity
Ferromagnetic
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Summary:Coexistence of ferroelectric and ferromagnetic order parameters was observed at room temperature in Bi0.6Dy0.3La0.1FeO3 thin films grown on Pt/TiO2/SiO2/Si substrates using a pulsed laser deposition technique similar to that for Bi0.6Tb0.3La0.1FeO3. The coexistence of ferroelectric and magnetic domains in specific spatial area of the thin film was also confirmed by scanning probe imaging. As expected, the magnetization values obtained for Bi0.6Dy0.3La0.1FeO3 bulk and thin films were higher than those of Bi0.6Tb0.3La0.1FeO3 bulk and polycrystalline thin films because the magnetic moment of Dy is higher than that of Tb. However, preferentially oriented thin films of Bi0.6Tb0.3La0.1FeO3 exhibit much higher magnetization values. It is speculated that structural alignment caused by stress developed during deposition of these films could be responsible for enhancement in magnetization.
Bibliography:istex:6534EAFFD8460DE136544839A5802D45CE58879C
ArticleID:03603
ark:/67375/6GQ-JQW2TH04-V
PII:S0884291400036037
ObjectType-Article-2
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content type line 23
ISSN:0884-2914
2044-5326
DOI:10.1557/jmr.2007.0285