Volume 74, Number 2, April 2006
|Page(s)||348 - 354|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||17 March 2006|
Orbital ordering and enhanced magnetic frustration of strained thin films
Department of Physics & Electron Spin Science Center, Pohang University of Science and Technology - Pohang, 790-784, South Korea
2 Pohang Accelerator Laboratory, Pohang University of Science and Technology Pohang, 790-784, South Korea
Accepted: 28 February 2006
Epitaxial thin films of multiferroic perovskite were synthesized on substrates, and orbital ordering and magnetic properties of the thin films were investigated. The ordering of the eg orbitals at a wave vector was detected by Mn K-edge resonant X-ray scattering. This peculiar orbital order inherently contains magnetic frustration. While bulk is known to exhibit simple ferromagnetism, the frustration enhanced by in-plane compressive strains in the films brings about cluster-glass-like properties.
PACS: 75.50.Dd – Nonmetallic ferromagnetic materials / 75.80.+q – Magnetomechanical and magnetoelectric effects, magnetostriction / 61.10.Eq – X-ray scattering (including small-angle scattering)
© EDP Sciences, 2006
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