期刊
PHYSICAL REVIEW LETTERS
卷 126, 期 15, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.126.157402
关键词
-
In this study, XMCD signal was observed from compensated two-dimensional triangle AFM structures on a Kagome lattice, based on the different absorption coefficients of the three sublattices and the sign of the spin chirality. This XMCD signal is only present when the spin chirality is negative, reflecting the unique charge density anisotropies and directions of spin and orbital magnetic moments in the system.
X-ray magnetic circular dichroism (XMCD) is generally not observed for antiferromagnetic (AFM) states because XMCD signals from the antiparallelly coupled spins cancel each other. In this Letter, we theoretically show the presence of an XMCD signal from compensated two-dimensional triangle AFM structures on a Kagome lattice. The calculation reveals the complete correspondence between the XMCD spectra and the sign of the spin chirality: the XMCD signal only appears when the spin chirality is negative. This XMCD signal originates from the different absorption coefficients of the three sublattices reflecting different charge density anisotropies and directions of spin and orbital magnetic moments.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据