论文标题
曲率对手性磁铁相变的影响
Curvature effects on phase transitions in chiral magnets
论文作者
论文摘要
如果反对称交换的常数（dzyaloshinskii-moriya相互作用）超过一定的临界值，则手性铁磁膜中存在磁化的周期平衡状态。在这里，我们证明在弯曲膜中可以显着修改该临界值。弯曲膜中对称和反对称交换相互作用之间的竞争会导致一种新型的域壁，该域壁相对于气缸轴。壁结构中间是Bloch和Néel的结构。获得了相边界曲线和新域壁的确切分析解决方案。
Periodical equilibrium states of magnetization exist in chiral ferromagnetic films, if the constant of antisymmetric exchange (Dzyaloshinskii-Moriya interaction) exceeds some critical value. Here, we demonstrate that this critical value can be significantly modified in curved film. The competition between symmetric and antisymmetric exchange interactions in a curved film can lead to a new type of domain wall which is inclined with respect to the cylinder axis. The wall structure is intermediate between Bloch and Néel ones. The exact analytical solutions for phase boundary curves and the new domain wall are obtained.
