High-field phase diagram and phase transitions in hexagonal manganite ErMnO3
High-field phase diagram and phase transitions in hexagonal manganite ErMnO3
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六方锰矿 ErMnO3 的高场相图和相变
DOI：
10.1103/physrevb.97.214419
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发表时间：
2018
影响因子：
3.7
通讯作者：
Kindo K.
中科院分区：
文献类型：
--
作者：
Liu Y. J.;Wang J. F.;Sun X. F.;Zhou J. -S.;Xia Z. C.;Ouyang Z. W.;Yang M.;Liu C. B.;Chen R;Cheng J. -G.;Kohama Y.;Tokunaga M.;Kindo K.
本文报道了对复杂自旋系统的高场磁化强度研究，并根据对磁化强度跃变、完整相图和自旋结构的不可约表示的分析，对在0.8，12和28 T观测到的轴相变提出了解释.我们的测量结果表明，磁重取向的代表诱导的磁转变在12 T，即，从三分之一平台阶段到完全极化阶段。0.8T的磁跃迁和28T的磁异常可以通过磁重定向和强磁场中自旋触发的力矩的反映来理解。这些方案与垂直于轴的磁化过程和磁化率结果很好地吻合。这些发现有助于全面理解这类化合物的磁相变及其物理机制。
We report high-field magnetization study on the complex spin systemand propose an explanation for the-axis phase transitions observed at 0.8, 12, and 28 T based on an analysis of the magnetization jumps, the completephase diagram and the irreducible representations of the(and) spin structure. Our measurements reveal that magnetic reorientation of the representationinduces the magnetic transition at 12 T, i.e., from a one-third plateau phase to a fully polarized phase. The magnetic transition at 0.8 T and the anomaly at 28 T can be understood by magnetic reorientations ofand a reflection of themoments triggered by thespins in strong magnetic fields. These scenarios are in good agreement with the magnetization process perpendicular to theaxis and the magnetic susceptibility results. These findings are helpful for a complete understanding of the magnetic phase transitions and the underlying physics in this family compounds.