Weak ferromagnetism in hexagonal orthoferrites RFeO3 (R = Lu, Er-Tb)

Hexagonal orthoferrites of rare earths RFeO3 (R = Lu, Er-Tb) were grown epitaxially on (111)ZrO2(Y2O3) substrates using metal-organic chemical vapour deposition. Temperature and field dependences of magnetization were measured and analyzed for all samples and revealed weak ferromagnetic behavior bel...

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Bibliographic Details
Published in:Applied physics letters 2011-09, Vol.99 (12)
Main Authors: Akbashev, A. R., Semisalova, A. S., Perov, N. S., Kaul, A. R.
Format: Article
Language:English
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Summary:Hexagonal orthoferrites of rare earths RFeO3 (R = Lu, Er-Tb) were grown epitaxially on (111)ZrO2(Y2O3) substrates using metal-organic chemical vapour deposition. Temperature and field dependences of magnetization were measured and analyzed for all samples and revealed weak ferromagnetic behavior below T = 120–140 K. The difference in electronic structure along with a distinct similarity in the crystal structure of hexagonal manganites RMnO3 and hexagonal orthoferrites RFeO3 are brought into focus in order to explain the results. Hexagonal orthoferrites are regarded as a promising family of multiferroics.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3643043