Magnetic structure and properties of pyrozene NaFeGe2O6

摘要：

The pyroxenes are of the interest as a new class of multiferroic materials. They have interesting physical properties and prom ise important applications. Their electric polarization is influence by comparatively weak magnetic fields. The sodium iron germanate NaFeGe2O6 powder was synthesized by the solid state reaction. The temperature-dependent neutron powder diffraction experiments show occurrence of magnetic reflections at 13 K in a reasonable agreement with the temperature-dependent inverse magnetic susceptibility date. The NaFeGe2O6 magnetic structure is incommensurate.It consists of antiferromagneticaUy coupled Fe3+ pairs with helical modulation within a-c plane of the crystal lattice. The magnetic peaks can be indexed with the magnetic propagation vector k= (0.3357(4),0,0.0814(3)) at 1.56 K.

关键词： pyrozene incommensurate magnetic structure neutron diffraction

作者: T.Drokina G.Petrakovskii L.Keller J.Schefer D.Ivanov

作者单位: L.V.Kirensky Institute of Physics,Siberian Branch of Russian Academy of Sciences Krasnoyarsk,Russia Laboratory for Neutron Scattering,ETH Zurich and Paul Scherrer Institute,CH-5232 Villigen PSI,Switze

会议类型: 国际会议

会议名称: The 10th China-Russia System on Advanced Materials and Technologies(第十届中俄新材料新工艺研讨会)

会议地点: 浙江嘉兴

会议语种:英文

页码: 398-399

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）