作者:J.M. Tarascon、J.L. Soubeyroux、J. Etourneau、R. Georges、J.M.D. Coey、O. Massenet
DOI:10.1016/0038-1098(81)90728-6
日期:1981.1
Abstract Magnetic structures of pure and carbon-doped europium hexaboride EuB 6−x C x , were determined by neutron diffraction on powders prepared from 11 B and 153 Eu. EuB 6 is a simple ferromagnet, whereas the x = 0.20 compound has an incommensurate spiral structure with propagation vector τ = (0.28, 0, 0). Data for a magnetically inhomogeneous intermediate composition, x = 0.05, indicate a mixture
摘要 纯的和碳掺杂的六硼化铕 EuB 6-x C x 的磁结构是通过对由 11 B 和 153 Eu 制备的粉末进行中子衍射确定的。EuB 6 是简单的铁磁体,而 x = 0.20 化合物具有不公度的螺旋结构,传播矢量 τ = (0.28, 0, 0)。磁性非均匀中间成分的数据 x = 0.05,表示铁磁域和螺旋磁域的混合,τ = (0, 0, 0.104)。EuB 6-x C x 中的螺旋磁性源于铁磁近邻交换和传导电子引起的反铁磁相互作用之间的竞争。