The Crystal Structure of Lanthanum-Strontium Manganites
The Crystal Structure of Lanthanum-Strontium Manganites
复制标题
锰酸镧锶晶体结构
DOI：
10.1088/0370-1301/68/9/302
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发表时间：
1955
期刊：
影响因子：
--
通讯作者：
M. Harwood
中科院分区：
文献类型：
--
作者：
M. Harwood
已经检查了亚锰酸镧-亚锰酸锶系统作为镧含量的函数。钙钛矿相在 23% 至 100% 的镧范围内保持稳定。在稳定性下限，它具有立方对称性，晶胞在 50% 到 60% 之间变成菱形。在通式LaMnox的镧锰氧体系中，x值在3×24和3×07之间变化。在整个范围内，结构是具有小晶胞类型的钙钛矿型结构。在系统的富氧端，对称性是菱面体，而在另一端，对称性是立方体。在这两个系统中，都表明了晶格参数和成分与磁居里温度之间的关系。
The lanthanum manganite-strontium manganite system has been examined as a function of the lanthanum content. The perovskite phase is stable from 23% to 100% lanthanum. At the lower limit of stability it is of cubic symmetry the unit cell becoming rhombohedral between 50% and 60% lanthanum. In the lanthanum manganese oxygen system of general formula LaMnox the value of x has been varied between 3 24 and 3 07. Over the entire range the structure is of the perovskite type with small type of cell. At the oxygen rich end of the system the symmetry is rhombohedral while at the other end it is cubic. In both systems the relations between the lattice parameters and composition and magnetic Curie temperatures are indicated.