压力下的自旋冰：对称性增强和无限阶多临界性
Spin ice under pressure: symmetry enhancement and infinite order multicriticality
摘要：
我们研究了自旋冰在单轴压力作用下产生四角畸变时的低温行为。在库仑液体和完全磁化相之间存在相变。不寻常的是，它结合了不连续和连续过渡的特点：序参量表现出跳跃，但这是伴随着一个发散的磁化率和消失的畴壁张力。所有这些方面都可以理解为在临界点处涌现的SU（2）对称性的结果。我们绘制出一个可能的实验实现。
英文摘要：
We study the low-temperature behaviour of spin ice when uniaxial pressure induces a tetragonal distortion. There is a phase transition between a Coulomb liquid and a fully magnetised phase. Unusually, it combines features of discontinuous and continuous transitions: the order parameter exhibits a jump, but this is accompanied by a divergent susceptibility and vanishing domain wall tension. All these aspects can be understood as a consequence of an emergent SU(2) symmetry at the critical point. We map out a possible experimental realisation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
