新型层状二硫化物CuCr0.99Ln0.01S2（Ln = La…Lu）的磁性

Korotaev Evgeniy V, Syrokvashin Mikhail M, Filatova Irina Yu, Zvereva Valentina V

Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia.

Materials (Basel). 2021 Sep 6;14(17):5101. doi: 10.3390/ma14175101.

The comprehensive study of the lanthanide-doped solid solutions CuCrLnS (Ln = La…Lu) magnetic properties was carried out using static magnetochemistry and differential scanning calorimetry techniques. It was shown that magnetic properties of CuCrLnS are significantly affected by the magnetic properties of the lanthanide ion. The magnetic susceptibility and the effective magnetic moment were found to deviate from the Curie-Weiss law in the temperature 90 K below and 50 K above the order-disorder transition at 695 K. The observed behavior of the temperature dependence of the effective magnetic moment in the order-disorder transition temperature region was described as a result of copper atoms redistribution over different types of the crystallographic sites.

利用静态磁化学和差示扫描量热法技术对掺杂镧系元素的固溶体CuCrLnS（Ln = La…Lu）的磁性进行了综合研究。结果表明，CuCrLnS的磁性受到镧系离子磁性的显著影响。在695K的有序-无序转变温度以下90K和以上50K的温度范围内，发现磁化率和有效磁矩偏离居里-外斯定律。有效磁矩在有序-无序转变温度区域的温度依赖性观察行为被描述为铜原子在不同类型晶体学位置上重新分布的结果。