Investigation of the magnetic properties in double perovskite R2CoMnO6 single crystals (R = rare earth: La to Lu)

M. K. Kim, J. Y. Moon, H. Y. Choi, S. H. Oh, N. Lee, Y. J. Choi

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Abstract

We have successfully synthesized the series of the double-perovskite R2CoMnO6 (R = rare earth: La to Lu) single crystals and have investigated their magnetic properties. The ferromagnetic order of Co2+/Mn4+ spins emerges mainly along the c axis. Upon decreasing the size of rare earth ion, the magnetic transition temperature decreases linearly from 204 K for La2CoMnO6 to 48 K for Lu2CoMnO6, along with the enhancement of monoclinic distortion. The temperature and magnetic-field dependences of magnetization reveal the various magnetic characteristics such as the metamagnetic transition in R = Eu, the isotropic nature of rare earth moment in R = Gd, and the reversal of magnetic anisotropy in R = Tb and Dy. Our results offer comprehensive information for understanding the roles of mixed-valent magnetic ions and rare earth magnetic moments on the magnetic properties.

Original languageEnglish
Article number426002
JournalJournal of Physics Condensed Matter
Volume27
Issue number42
DOIs
Publication statusPublished - 2015 Oct 7

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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