Structural properties of ErFe O3 in the spin-reorientation region
Structural properties of ErFe O3 in the spin-reorientation region
复制标题
DOI：
10.1103/physrevb.72.052413
复制
发表时间：
2005-08
影响因子：
3.7
通讯作者：
L. Tsymbal;V. Kamenev;Y. Bazaliy;D. A. Khara;P. Wigen
中科院分区：
文献类型：
--
作者：
L. Tsymbal;V. Kamenev;Y. Bazaliy;D. A. Khara;P. Wigen
在自旋重取向转变的正铁氧体的磁化强度的温度依赖性不同于传统的平均场理论预测。对这种差异的解释之一是基于结构变化伴随着磁性转变的假设。最近，我们提出了一个解释这种现象的基础上纯粹的磁性的理由。在这个x射线研究中，一个单晶可能的结构变化被探测到。我们的测量发现在自旋重取向区域没有晶格畸变，从而支持自旋旋转的纯磁性性质。
In spin-reorientation transition in orthoferrites the temperature dependence of the magnetization differs from that predicted by conventional mean-field theory. One of the explanations of this discrepancy is based on the assumption that structural changes accompany magnetic transitions. Recently we proposed an explanation of this phenomena based on purely magnetic grounds. In this x-ray study a possible structural change in ansingle crystal is probed. Our measurements find no lattice distortions in the spin-reorientation region, thus supporting the purely magnetic nature of spin rotation.