Effects of different annealing atmospheres on magnetic properties in La2CoMnO6 single crystals

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

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We have successfully synthesized the high-quality single crystals of double perovskite La2CoMnO6 by flux method and investigated the effects of different annealing conditions on the magnetic properties. In an as-grown crystal, ferromagnetic order along the c axis arises below 204 K, and the spin-glass-type behavior inherent from ionic disorders is also observed. Upon annealing in different gas environments, the reconstructed magnetic states induce a metamagnetic transition (after Ar annealing), and increase Curie temperature (after O2 annealing). After quenching, the magnetic transition temperature decreases significantly, comprising lots of defects and disorders. Our results provide adequate procedures to control magnetic properties of double-perovskite compounds.

Original languageEnglish
Pages (from-to)776-779
Number of pages4
JournalCurrent Applied Physics
Volume15
Issue number7
DOIs
Publication statusPublished - 2015 Apr 21

Fingerprint

Magnetic properties
Single crystals
Annealing
magnetic properties
atmospheres
annealing
single crystals
Perovskite
disorders
Spin glass
Curie temperature
spin glass
Superconducting transition temperature
Quenching
Gases
transition temperature
quenching
Fluxes
Defects
Crystals

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Kim, M. K. ; Moon, J. Y. ; Choi, H. Y. ; Oh, S. H. ; Lee, N. ; Choi, Young Jai. / Effects of different annealing atmospheres on magnetic properties in La2CoMnO6 single crystals. In: Current Applied Physics. 2015 ; Vol. 15, No. 7. pp. 776-779.
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Effects of different annealing atmospheres on magnetic properties in La2CoMnO6 single crystals. / Kim, M. K.; Moon, J. Y.; Choi, H. Y.; Oh, S. H.; Lee, N.; Choi, Young Jai.

In: Current Applied Physics, Vol. 15, No. 7, 21.04.2015, p. 776-779.

Research output: Contribution to journalArticle

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AU - Kim, M. K.

AU - Moon, J. Y.

AU - Choi, H. Y.

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AU - Lee, N.

AU - Choi, Young Jai

PY - 2015/4/21

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AB - We have successfully synthesized the high-quality single crystals of double perovskite La2CoMnO6 by flux method and investigated the effects of different annealing conditions on the magnetic properties. In an as-grown crystal, ferromagnetic order along the c axis arises below 204 K, and the spin-glass-type behavior inherent from ionic disorders is also observed. Upon annealing in different gas environments, the reconstructed magnetic states induce a metamagnetic transition (after Ar annealing), and increase Curie temperature (after O2 annealing). After quenching, the magnetic transition temperature decreases significantly, comprising lots of defects and disorders. Our results provide adequate procedures to control magnetic properties of double-perovskite compounds.

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