Spin Density on B Sites and Magnetic Structure Factors of CeB6
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概要
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Structure factors for magnetic scattering of neutrons by CeB6 are calculated for the magnetic moment distributions at 1.5 K and 8 T (in phase II) determined from the analysis of the hyperfine field at B nuclei. 4f electrons of Ce are polarized magnetically with the magnetic moment of about 1µB per Ce parallel to the applied field, whereas 2p electrons of B are also polarized inversely by about -0.1µB per B6 molecule. The structure factor S(Q) has a large anisotropy for the direction of the scattering vector Q due to the anisotropy of the 4f wave function. For small Q, an oscillatory feature appears in S(Q) due to the inhomogeneous spin densities on the 2p states of B sites. Diffraction peaks with half-integer indexes are predicted to appear in the large Q region, which will provide direct evidence of the antiferro-octupolar ordering induced by a magnetic field in phase II.
- Physical Society of Japanの論文
- 2001-07-15
著者
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Hanzawa Katsurou
Department Of Physics Faculty Of Science And Technology Science University Of Tokyo
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