Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 86, Issue 6, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.7566/JPSJ.86.064703
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Funding
- Institute for Solid State Physics, The University of Tokyo [15519]
- MEXT, Japan [15K05123, 15K05145]
- Grants-in-Aid for Scientific Research [15K05123, 15K05145] Funding Source: KAKEN
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The magnetic structure of the multiferroic Ca2CoSi2O7 was determined by neutron diffraction techniques. A combination of experiments on polycrystalline and single-crystal samples revealed a collinear antiferromagnetic structure with the easyaxis along the < 100 > directions. The dielectric state is discussed in the framework of the spin-dependent d-p hybridization mechanism, leading to the realization of the antiferroelectric structure. The origin of the magnetic anisotropy is discussed in comparison with that of the isostructural Ba2CoGe2O7.
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