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Mössbauer Study of the Dynamics in BaFe12O19 Single Crystals
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  • Journal title : Journal of Magnetics
  • Volume 17, Issue 1,  2012, pp.6-8
  • Publisher : The Korean Magnetics Society
  • DOI : 10.4283/JMAG.2012.17.1.006
 Title & Authors
Mössbauer Study of the Dynamics in BaFe12O19 Single Crystals
Choi, J.W.; Sur, J.C.; Lim, Jung-Tae; Kim, Chin-Mo; Kim, Chul-Sung;
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 Abstract
Mssbauer spectra of hexagonal single crystals were studied at various temperatures (4-300 K). It was found that the spin states in Fe atoms were parallel to the -ray's direction into a single crystal along the caxis. The location of the Fe ion in the 2b site is unusual in an oxide structure and has strong anisotropic lattice vibrations. Moreover, at room temperature, the zero absorption lines of the Fe ions at the 2b site were observed due to fast diffusion motion in a double well atomic potential. The two Fe ions of the single crystal mainly enter into the sites in the mirror plane of the trigonalbipyramidal structure.
 Keywords
spin state;anisotropic lattice vibration;bipyramidal structure;
 Language
English
 Cited by
1.
Neutron Diffraction and Magnetic Properties of $Ba_2Co_2Fe_{12}O_{22}$: $Co_2Y$,;;;;

Journal of the Korean Physical Society, 2013. vol.62. 12, pp.1919-1921 crossref(new window)
1.
Neutron diffraction and magnetic properties of Ba2Co2Fe12O22: Co2Y, Journal of the Korean Physical Society, 2013, 62, 12, 1919  crossref(new windwow)
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