反常输运中的贝里曲率效应
Berry-Curvature Effect in Anomalous Transport
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中文总结 AI 辅助
该研究针对铁磁体反常输运的贝里相位效应提出新推导，扩展至altermagnets与非中心对称金属，推导了反常霍尔效应、热流及热电流，完善了反常输运的相关理论。
中文摘要 AI 辅助
Di Xiao等人在《物理评论快报》（Phys. Rev. Lett.）97卷026603页（2006年）发表了铁磁体中由温度或化学势梯度等统计力驱动的反常输运贝里相位效应理论，该理论基于与场相关的态密度，其会产生电流密度的额外贡献。我们基于准经典矩阵动力学方程，提出了 altermagnets（非共线反铁磁体）和非中心对称金属中反常输运贝里相位效应的另一种推导方法；除反常霍尔效应外，还推导了反常热流和反常热电流。
英文摘要
A theory of the Berry-phase effect in anomalous transport in ferromagnets driven by statistical forces such as the gradient of temperature or chemical potential has been developed by Di Xiao et al in Phys. Rev. Lett. 97, 026603 (2006) based on a field-dependent density of states generating an additional contribution to the current density. We present an alternative derivation of the Berry- phase effect in anomalous transport in altermagnets and noncentrosymmertric metals based on quasiclassic matrix kinetic equation. Along with anomalous Hall effect an anomalous heat flow and anomalous thermalelectric currents are also derived.
