2002/11/18 by Yukio Yasui, Satoshi Iikubo, Hiroshi Harashina +4 · 1 citation
Earth and Planetary Sciences · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Cold Fusion and Nuclear Reactions #Nuclear materials and radiation effects #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1143/jpsj.72.865
published as J. Phys. Soc. Jpn. 72 (2003) No.4 865. · 12 pages, 1 table, 12 figures
arxiv created 2002/11/18 · openalex publication_date 2003/04/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Neutron diffraction studies have been carried out in the applied magnetic field H(//[011]) on a single crystal of pyrochlore ferromagnet Nd2Mo2O7, whose Hall resistivity(rH) has been reported to have quite unusual magnetic field (H)- and temperature (T)- dependences. The intensities of the observed magnetic reflections have been reproduced at 1.6 K as a function of H, by considering the change of the magnetic structure with H, where effects of the exchange fields at the Mo and Nd sites induced by the Mo-Mo and Mo-Nd exchange interactions and the single ion anisotropies of Mo- and Nd- moments are considered. From the H-dependent magnetic structure, the H-dependence of rH has been calculated by using the chiral order mechanism. By comparing the result with the H-dependence of the observed rH, it is found that the chiral order mechanism does not work well in the present system.