Magnetic and electronic properties of B -site-ordered double-perovskite oxide L a2CrMn O6 thin films

K. Yoshimatsu, J. Ishimaru, K. Watarai, K. Yamamoto, Y. Hirata, H. Wadati, Y. Takeda, K. Horiba, H. Kumigashira, O. Sakata, A. Ohtomo

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Abstract

We report on magnetic and electronic properties of the B-site-ordered double-perovskite La2CrMnO6 films grown by pulsed-laser deposition. The magnetic-field dependence of magnetization curves showed hysteresis at low temperatures regardless of the degree of Cr/Mn order and the saturation magnetization became smaller for the higher-Cr/Mn-ordered film. The x-ray absorption spectroscopy and x-ray magnetic circular dichroism measurements suggested antiferromagnetic coupling between Cr3+ and Mn3+ ions, resulting in ferrimagnetism of the B-site-ordered double-perovskite La2CrMnO6. A band structure was established by combining these results together with the synchrotron-radiation photoemission and optical spectra. We discuss the magnetic states among the B-site-ordered La2B′MnO6 (B′:3d transition-metal elements from V to Ni) being basically consistent with the Kanamori-Goodenough rule.

Original languageEnglish
Article number235129
JournalPhysical Review B
Volume99
Issue number23
DOIs
Publication statusPublished - 2019 Jun 13

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Yoshimatsu, K., Ishimaru, J., Watarai, K., Yamamoto, K., Hirata, Y., Wadati, H., Takeda, Y., Horiba, K., Kumigashira, H., Sakata, O., & Ohtomo, A. (2019). Magnetic and electronic properties of B -site-ordered double-perovskite oxide L a2CrMn O6 thin films. Physical Review B, 99(23), [235129]. https://doi.org/10.1103/PhysRevB.99.235129