Neutron Diffraction Study of Helimagnet (Ba_<1-x>Sr_x)_2Zn_2Fe_<12>O_<22>

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概要

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• Neutron diffraction experiments were carried out on a single crystal of(Ba. .Sr,).Zn.Fe..0.., ,v=0.748, at 77 and 296 K. The turn angle of the helix, cf.., is81.6' at 77 K and 135' at 296 K. The helix consists of large and small ferrimagneticspin-bunches separated by an angle of cfa./ 2 in the c-plane. Their magnitudes are 4.32p and 0.32 jt, respectively. Here, p is the magnetic moment per Fe ion: 7t=4.66 7t. at77 K and p = 1.86 p. at 296 K. These results are discussed from a point of view of thesuper-exchange interaction.

• 社団法人日本物理学会の論文
• 1986-11-15

著者

• MOMOZAWA Nobuyuki

  Department of Physics,Faculty of Science and Technology,Science University of Tokyo

• Momozawa N

  Sci. Univ. Tokyo Chiba Jpn

• Momozawa Nobuyuki

  Department Of Physics Faculty Of Science And Technology Science University Of Tokyo

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