论文标题
高磁场的U2PD2IN中的非连接磁性结构
Noncollinear magnetic structure in U2Pd2In at high magnetic fields
论文作者
论文摘要
我们报告了5F-电子Shastry-Sutherland System U2PD2IN中的意外磁场驱动的磁性结构。该阶段在低温下从沿A轴施加的25.8 t的临界场上的非共线性抗磁磁接地状态发展。所有U时刻的净磁矩在应用场的方向上具有净磁矩，由铁磁传播矢量QF =（0 0 0）和由传播矢量QAF =（0 0.30 1/2）描述的抗铁磁成分，这是由于垂直于施加场的方向的调制而引起的。我们得出的结论是，这种令人惊讶的非共线磁性结构是由于单离子各向异性之间的竞争，试图保持与基础状态相似的矩，沿[110]型型方向，dzyaloshinskii-Moryia互动，迫使它们迫使它们彼此垂直，并尝试沿现场方向对齐外部磁场。
We report an unexpected magnetic-field-driven magnetic structure in the 5f-electron Shastry- Sutherland system U2Pd2In. This phase develops at low temperatures from a noncollinear antiferromagnetic ground state above the critical field of 25.8 T applied along the a-axis. All U moments have a net magnetic moment in the direction of the applied field, described by a ferromagnetic propagation vector qF = (0 0 0) and an antiferromagnetic component described by a propagation vector qAF = (0 0.30 1/2 ) due to a modulation in the direction perpendicular to the applied field. We conclude that this surprising noncollinear magnetic structure is due to a competition between the single-ion anisotropy trying to keep moments, similar to the ground state, along the [110]-type directions, Dzyaloshinskii-Moryia interaction forcing them to be perpendicular to each other and application of the external magnetic field attempting to align them along the field direction.
