Rectified electric current induced by irradiating light, a so-called photocurrent, is an established phenomenon in optoelectronic physics. In this paper, we present a comprehensive classification of the photocurrent response arising from the parity violation in bulk systems. We clarify the contrasting role of $\mathcal{T}$ and $\mathcal{P}\mathcal{T}$ symmetries and consequently find new types of photocurrent phenomena characteristic of parity-violating magnets—the intrinsic Fermi surface effect and the gyration current. In particular, the gyration current is induced by circularly polarized light, and it is the counterpart of the shift current caused by linearly polarized light. This photocurrent adds a new functionality of materials studied in various fields of condensed matter physics such as multiferroics and spintronics. A list of materials is provided. Furthermore, we show that the gyration current is strongly enhanced by topologically nontrivial band dispersion. On the basis of the microscopic analysis of Dirac models, we demonstrate the divergent photocurrent response and elucidate the importance of the tilting of Dirac cones.

中文翻译：

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奇偶校验磁体中的手性光电流和拓扑反铁磁体中的增强响应

通过辐射光感应产生的整流电流，即所谓的光电流，在光电物理学中是已确立的现象。在本文中，我们对散装系统中奇偶校验违规引起的光电流响应进行了全面分类。我们阐明了$\mathcal{Ť}$ 和 $\mathcal{P}\mathcal{Ť}$对称性，因此找到了奇偶校验磁铁特有的新型光电流现象-固有的费米表面效应和回转电流。特别地，回转电流由圆偏振光感应，并且它是由线性偏振光引起的移位电流的对应物。这种光电流为在诸如多铁氧体和自旋电子学之类的凝聚态物理各个领域研究的材料增加了新的功能。提供了材料清单。此外，我们表明，拓扑非平凡的频带分散会大大增强旋转电流。在狄拉克模型的微观分析的基础上，我们证明了发散的光电流响应，并阐明了狄拉克锥的倾斜的重要性。