论文标题
Weyl半法中带状数学起源的磁子磁化磁性效应
Phonon magnetochiral effect of band-geometric origin in Weyl semimetals
论文作者
论文摘要
磁子磁管效应由声波的速度或衰减中的非重生效应在与外部磁场平行和反平行时的传播时。最近在手性磁铁中报道了对该作用的第一个实验观察结果，并归因于声音子和手性镁之间的杂交。在这里，我们预测电子起源在手性Weyl半法中的潜在可测量的声子磁性效应。由浆果曲率和轨道磁矩引起的，手性异常对纵向声子增强了这种效果。
The phonon magnetochiral effect consists of a nonreciprocity in the velocity or attenuation of acoustic waves when they propagate parallel and antiparallel to an external magnetic field. The first experimental observation of this effect has been reported recently in a chiral magnet and ascribed to the hybridization between acoustic phonons and chiral magnons. Here, we predict a potentially measurable phonon magnetochiral effect of electronic origin in chiral Weyl semimetals. Caused by the Berry curvature and the orbital magnetic moment, this effect is enhanced for longitudinal phonons by the chiral anomaly.
