Magnetic and electronic properties of ordered double-perovskite La 2VMnO6 thin films

S. Chakraverty, K. Yoshimatsu, Y. Kozuka, H. Kumigashira, M. Oshima, T. Makino, A. Ohtomo, M. Kawasaki

研究成果: Article査読

22 被引用数 (Scopus)

抄録

We report the stabilization of the B-site-ordered phase of epitaxial La2VMnO6 double-perovskite films grown by pulsed-laser deposition. Previous theoretical calculation predicted the possibility of realizing a spin-compensated half-metallic state in this system with an Mn3 + ion at a low spin state. In contrast, our magnetic measurements suggest that the system in ordered phase is ferrimagnetic with Mn3+ at a high spin state. Synchrotron radiation photoemission measurement indicates that the electronic ground state of this material is insulating: occupied Mn 3d t2g, Mn 3d eg, and V 3d t2g states are located far from the Fermi level. The optical band gap is estimated to be about 0.9 eV, which is similar to the charge transfer gap of LaMnO3 based on the optical absorption spectra.

本文言語English
論文番号132411
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
84
13
DOI
出版ステータスPublished - 2011 10 19
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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