Orbital ordering and enhanced magnetic frustration of strained BiMnO 3 thin films
2006; Institute of Physics; Volume: 74; Issue: 2 Linguagem: Inglês
10.1209/epl/i2005-10540-1
ISSN1286-4854
AutoresChan‐Ho Yang, T. Y. Koo, S.-H. Lee, Changyong Song, K.-B. Lee, Yoon Hee Jeong,
Tópico(s)Advanced Condensed Matter Physics
ResumoEpitaxial thin films of multiferroic perovskite BiMnO3 were synthesized on SrTiO3 substrates, and orbital ordering and magnetic properties of the thin films were investigated. The ordering of the Mn3+ eg orbitals at a wave vector (¼¼¼) was detected by Mn K-edge resonant X-ray scattering. This peculiar orbital order inherently contains magnetic frustration. While bulk BiMnO3 is known to exhibit simple ferromagnetism, the frustration enhanced by in-plane compressive strains in the films brings about cluster-glass-like properties.
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