Uniaxial-pressure induced ferromagnetism of enhanced paramagnetic Sr3Ru2O7
Uniaxial-pressure induced ferromagnetism of enhanced paramagnetic Sr3Ru2O7
复制标题
DOI：
10.1143/jpsj.73.1322
复制
发表时间：
2004-05-01
影响因子：
1.7
通讯作者：
Uwatoko, Y
中科院分区：
文献类型：
--
作者：
Ikeda, SI;Shirakawa, N;Uwatoko, Y
我们报告了层状钙钛矿钌酸锶 Sr3Ru2O7 中磁性的单轴压力依赖性。通过施加相对较小的单轴压力（垂直于 RuO2 层大于 0.1 GPa），增强顺磁体的铁磁有序性会在 80K 以下显现出来。 1 kOe 和 2 K 下的磁化强度比环境条件下大 100 倍。居里温度 T-C 的单轴压力依赖性表明一级磁转变。这种单轴压力诱导铁磁性的起源是根据 RuO6 八面体在 RuO2 平面内的旋转来讨论的。
We report a uniaxial pressure-dependence of magnetism in layered perovskite strontium ruthenate Sr3Ru2O7. By applying a relatively small uniaxial pressure, greater than 0.1 GPa normal to the RuO2 layer, ferromagnetic ordering manifests below 80K from the enhanced-paramagnet. Magnetization at 1 kOe and 2 K becomes 100 times larger than that under ambient condition. Uniaxial pressure dependence of Curie temperature T-C suggests the first order magnetic transition. Origin of this uniaxialpressure induced ferromagnetism is discussed in terms of the rotation of RuO6 octahedra within the RuO2 plane.