Ferrimagnetism and spontaneous ordering of transition metals in double perovskite La2CrFeO6 films

S. Chakraverty, A. Ohtomo, D. Okuyama, M. Saito, M. Okude, R. Kumai, T. Arima, Y. Tokura, S. Tsukimoto, Y. Ikuhara, M. Kawasaki

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Abstract

We report on the atomic ordering of B-site transition metals and magnetic properties of epitaxial La2CrFeO6 double-perovskite films grown by pulsed-laser deposition under various conditions. The highest-ordered sample exhibited a fraction of antisite disorder of only 0.05 and a saturation magnetization of ∼2 μB per formula unit at 5 K. The result is consistent with the antiferromagnetic ordering of local spin moment (3d3 3d5; S = -3/2 + 5/2 = 1). Therefore, the magnetic ground state of La2CrFeO6 double perovskite that has been long debated is unambiguously revealed to be ferrimagnetic. Our results present a wide opportunity to explore novel magnetic properties of binary transition-metal perovskites upon epitaxial stabilization of the ordered phase.

Original languageEnglish
Article number064436
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume84
Issue number6
DOIs
Publication statusPublished - 2011 Aug 26
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Chakraverty, S., Ohtomo, A., Okuyama, D., Saito, M., Okude, M., Kumai, R., Arima, T., Tokura, Y., Tsukimoto, S., Ikuhara, Y., & Kawasaki, M. (2011). Ferrimagnetism and spontaneous ordering of transition metals in double perovskite La2CrFeO6 films. Physical Review B - Condensed Matter and Materials Physics, 84(6), [064436]. https://doi.org/10.1103/PhysRevB.84.064436