...
首页> 外文期刊>Communications in Theoretical Physics >Electron Correlations, Spin-Orbit Coupling, and Antiferromagnetic Anisotropy in Layered Perovskite Iridates Sr2IrO4
【24h】

Electron Correlations, Spin-Orbit Coupling, and Antiferromagnetic Anisotropy in Layered Perovskite Iridates Sr2IrO4

机译:电子相关,旋转轨道耦合和层状钙钛矿虹膜射线的反铁磁性各向异性SR2IRO4

获取原文
获取原文并翻译 | 示例
           

摘要

The effects of electron correlations and spin-orbit coupling on the magnetic anisotropy in the antiferromagnetically ordered 5d perovskite iridates Sr2IrO4 is investigated theoretically using a microscopic model includes a realistic five-orbital tight-binding Hamiltonian, atomic spin-orbit coupling, and multi-orbital Hubbard interactions. Hartree-Fock approximation is applied to obtain the ground state properties with varying spin-orbit coupling and electron correlations. We demonstrate that the interplay between the atomic intraorbital Coulomb repulsion and the Hund's rule coupling leads to a remarkable variability of the resulting magnetic anisotropy at a constant nonzero spin-orbit coupling. At the same time, the preferred direction of the ordered antiferromagnetical moment remains unaltered upon changes in the strength of spin-orbit coupling.
机译:理论上使用微观模型研究了电子相关和旋转轨道耦合对磁各向异性的磁各向异性对磁各向异性的影响包括一个逼真的五轨道紧密的哈密顿,原子自旋轨道耦合和多轨道 哈伯德互动。 施加Hartree-Fock近似以获得具有不同自旋轨道耦合和电子相关性的地位性质。 我们证明原子腔内库仑排斥与HUND的规则耦合之间的相互作用导致所得磁各向异性在恒定的非零旋转轨道耦合下具有显着变化。 同时,在旋转轨道耦合强度的变化时,有序的反铁磁性矩的优选方向保持不变。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号