Antichiral order and spin reorientation transitions of triangle-based antiferromagnets
Antichiral order and spin reorientation transitions of triangle-based antiferromagnets
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DOI：
10.1103/physrevb.106.l020403
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发表时间：
2022-04
影响因子：
3.7
通讯作者：
L. Balents
中科院分区：
文献类型：
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作者：
L. Balents
我们发现，三角形为基础的反铁磁体与“反手征”的顺序显示一个非平凡的依赖的自旋取向与面内场。自旋从在非常低的场的相反方向上旋转演变为在某一临界场尺度以上的场的相同方向上旋转。在后一种制度的系统显示一阶跃迁的自旋角跳跃，这些一阶线终止于伊辛普适类的临界点。讨论了Mn$_3$Sn的应用。
We show that triangle-based antiferromagnets with"anti-chiral"order display a non-trivial dependence of the spin orientation with an in-plane field. The spins evolve from rotating in the opposite sense to the field at very low fields to rotating in the same sense as the field above some critical field scale. In the latter regime the system displays first order transitions at which the spin angles jump, and these first order lines terminate in critical points in the Ising universality class. Application to Mn$_3$Sn is discussed.