论文标题
具有反转对称性的涡流型自旋结构的分析特性
Analytic Property of Vortex-Type Spin Structures in Itinerant Electron System with Inversion Symmetry
论文作者
论文摘要
已经研究了使用广义Hartree-fock（GHF）近似值在FCC哈伯德模型中发现的多个自旋密度波的分析性能，这些旋转结构最近已在FCC Hubbard模型中发现。结果表明，2Q多螺旋旋转密度波（SDW）由两种类型的半骨涡旋和两种类型的抗生物组成。在3Q多个螺旋SDW中，具有“西风”的半骨气涡流结构沿着垂直于涡流平面的轴扭曲。将12Q多SDW（12QMSDW）分析为（001）平面上的2-4QMSDW和其余4QMSDW的叠加。从分析上显示，2-4QMSDW形成了核心极化为零的平面涡流和抗替代物，因此12QMSDW在[001]方向上形成具有附加SDW极化的相同类型的涡流。这些结果与基于GHF计算的可视化图像数据非常吻合。
Analytic properties of the multiple spin density waves showing vortex structures, which have recently been found in the fcc Hubbard model using the generalized Hartree-Fock (GHF) approximation, have been investigated. It is shown that the 2Q multiple helical spin density waves (SDW) consist of two types of half-skyrmion vortices and two types of antivortices. In the 3Q multiple helical SDW, the half-skyrmion vortex structures with the "westerlies" are shown to be twisted along the axis perpendicular to the vortex plane. The 12Q multiple SDW (12QMSDW) are analyzed as a superposition of the 2-4QMSDW on the (001) plane and the remaining 4QMSDW. It is shown analytically that the 2-4QMSDW forms the planar vortices and antivortices with zero core polarization, so that the 12QMSDW forms the same types of vortices with additional SDW polarization in the [001] direction. These results are in good agreement with the visualization image data based on the GHF calculations.
