Mixed magnetic phase in 6H-type BaFeO3-δ

Kazuhiro Mori, Takashi Kamiyama, Hisao Kobayashi, Toshiya Otomo, Kusuo Nishiyama, Masaaki Sugiyama, Keiji Itoh, Toshiharu Fukunaga, Susumu Ikeda

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The magnetic state in 6H-type BaFeO3-δ at low temperature was studied using small-angle neutron scattering, positive-muon spin relaxation and magnetization measurements. These experiments demonstrate the appearance of two different types of magnetic states: an antiferromagnetic ordering with a long-range correlation and magnetic domains with a short-range correlation. The antiferromagnetic Fe spin arrangement occurs below 130 K. In contrast, the magnetic domains are formed below 170 K and the average size of the magnetic domains was estimated as ∼124 Å. These results explain the discrepancy of the Néel temperatures between three measurement techniques: magnetization, neutron powder diffraction and Mössbauer measurements. Furthermore, it was found that the magnetic domains coexist with the long-range antiferromagnetic ordering below 130 K.

Original languageEnglish
JournalJournal of Applied Crystallography
Volume40
Issue numberSUPPL. 1
DOIs
Publication statusPublished - Apr 2007
Externally publishedYes

Fingerprint

Magnetic domains
magnetic domains
Mesons
Neutron Diffraction
Small Angle Scattering
Powder Diffraction
Temperature
Neutrons
Magnetization
magnetization
Neutron powder diffraction
Neutron scattering
muons
neutron scattering
neutrons
diffraction
Experiments
temperature

Keywords

  • Antiferromagnetic ordering
  • BaFeO
  • Magnetic domains
  • Magnetization
  • Positive-muon spin relaxation
  • SANS

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Structural Biology

Cite this

Mori, K., Kamiyama, T., Kobayashi, H., Otomo, T., Nishiyama, K., Sugiyama, M., ... Ikeda, S. (2007). Mixed magnetic phase in 6H-type BaFeO3-δ. Journal of Applied Crystallography, 40(SUPPL. 1). https://doi.org/10.1107/S0021889807001653

Mixed magnetic phase in 6H-type BaFeO3-δ. / Mori, Kazuhiro; Kamiyama, Takashi; Kobayashi, Hisao; Otomo, Toshiya; Nishiyama, Kusuo; Sugiyama, Masaaki; Itoh, Keiji; Fukunaga, Toshiharu; Ikeda, Susumu.

In: Journal of Applied Crystallography, Vol. 40, No. SUPPL. 1, 04.2007.

Research output: Contribution to journalArticle

Mori, K, Kamiyama, T, Kobayashi, H, Otomo, T, Nishiyama, K, Sugiyama, M, Itoh, K, Fukunaga, T & Ikeda, S 2007, 'Mixed magnetic phase in 6H-type BaFeO3-δ', Journal of Applied Crystallography, vol. 40, no. SUPPL. 1. https://doi.org/10.1107/S0021889807001653
Mori K, Kamiyama T, Kobayashi H, Otomo T, Nishiyama K, Sugiyama M et al. Mixed magnetic phase in 6H-type BaFeO3-δ. Journal of Applied Crystallography. 2007 Apr;40(SUPPL. 1). https://doi.org/10.1107/S0021889807001653
Mori, Kazuhiro ; Kamiyama, Takashi ; Kobayashi, Hisao ; Otomo, Toshiya ; Nishiyama, Kusuo ; Sugiyama, Masaaki ; Itoh, Keiji ; Fukunaga, Toshiharu ; Ikeda, Susumu. / Mixed magnetic phase in 6H-type BaFeO3-δ. In: Journal of Applied Crystallography. 2007 ; Vol. 40, No. SUPPL. 1.
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