Magnetic-field control of the electric polarization in BiMnO3
Magnetic-field control of the electric polarization in BiMnO3
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DOI：
10.1103/physrevb.82.094425
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发表时间：
2010-07
影响因子：
3.7
通讯作者：
I. Solovyev;Z. Pchelkina
中科院分区：
文献类型：
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作者：
I. Solovyev;Z. Pchelkina
（1）铁电极化是由中心对称C2/c结构中隐藏的反铁磁序驱动的;（2）相对论自旋轨道相互作用是倾斜自旋铁磁性的响应。我们的分析得到了应用Berry相理论对BiMnO低能模型的电子极化的数值计算的支持
, which can be summa-rized as follows: (1) the ferroelectric polarization is driven by the hidden antiferromagnetic order inthe otherwise centrosymmetric C2/c structure; (2) the relativistic spin-orbit interaction is respon-sible for the canted spin ferromagnetism. Our analysis is supported by numerical calculations ofelectronic polarization using Berry’s phase formalism, which was applied to the low-energy modelof BiMnO