We report the synthesis of eight new members of the i-MAX family, of the formula (Mo_2/3RE_1/3)₂GaC, where RE = Gd, Tb, Dy, Ho, Er, Tm, Lu, and Yb, the latter not previously incorporated in a MAX phase. The structure and composition of powder samples were investigated by X-ray diffraction, scanning transmission electron microscopy, and energy dispersive X-ray analysis combined with scanning electron microscopy. All phases showed evidence of an orthorhombic (Cmcm) structure, and the phases based on Er and Yb also crystallized in a monoclinic (C2/c) arrangement. The chemical order of the magnetic elements suggests interesting magnetic characteristics, with a high tuning potential through the range of attainable lanthanide elements.

我们报告了i -MAX家族的八个新成员的合成，其分子式为（Mo _2/3 RE _1/3）₂ GaC，其中RE = Gd，Tb，Dy，Ho，Er，Tm，Lu和Yb ，后者先前未纳入MAX阶段。通过X射线衍射，扫描透射电子显微镜和能量色散X射线分析结合扫描电子显微镜研究了粉末样品的结构和组成。所有相均显示出正交晶（Cmcm）结构的证据，并且基于Er和Yb的相也在单斜晶（C 2 / c）的安排。磁性元素的化学顺序表明了有趣的磁性，在可实现的镧系元素范围内具有很高的调谐电位。