Neutron Diffraction Studies of the Magnetic Structure of Ho₂Fe₉Ga_8～xAlx

• 来源期刊: 原子核物理：英文版
• 学科: 物理学
• 关键词: NEUTRON DIFFRACTION MAGNETIC structure
• 年，卷（期）: 1997,（1）
• 页码范围: 44-47
• 页数: 4页
• 分类号: O4

摘要

【正】 The crystallographic and magnetic structures of Ho₂Fe₉Ga_8～xAl_x（x=2,4 and 6）arestudied by powder neutron diffraction at room temperature.The atom fractional occupancies ofGa and AI and the atom magnetic moments of Ho and Fe are obtained by Rietveld analysisprogram.The magnetic structure of the phase with x=2 shows an easy-axis anisotropy and themagnetic moments of all atoms are parallel to c axis.The saturation magnetization and Curietemperatures of samples with x in the range 0～8 are investigated.