反铁磁绝缘体中的轴子质量
Axion mass in antiferromagnetic insulators
摘要：
从路径积分出发计算了反铁磁绝缘体中的轴子势。它是由绝缘体中反铁磁相的序参量的有效势导出的。静态和动态的轴子定义一致的潜力。因此，反铁磁/顺磁和拓扑/正常秩序进行分类。预测了动力学轴子的各个相态，其质量在eV尺度内是不同的。
英文摘要：
We calculate axion potential in antiferromagnetic insulators from path integral. It is derived from the effective potential for the order parameter of the antiferromagnetic phase in insulators. Static and dynamical axions are defined consistently from the potential. Consequently antiferromagnetic/paramagnetic and topological/normal orders are classified. The dynamical axion is predicted in all phases and its mass turns out to be various values up to eV scale.
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