论文标题
Weyl半含量的非线性磁转运
Nonlinear magnetotransport in Weyl semimetal
论文作者
论文摘要
最近发现的量子非线性大厅效应已恢复了非线性运输领域。在这里，我们预测磁场诱导的非线性霍尔在时间反转对称的Weyl半学中的效应。我们表明，诸如浆果曲率和洛伦兹力的磁性部分的频带几何量的相互作用会导致磁场线性线性的有限非线性霍尔电导率。这种非线性霍尔电导率可以通过非线性传输测量以及非线性光学现象（如光电流和第二次谐波产生）表现出来。
The recent discovery of the quantum nonlinear Hall effect has revived the field of nonlinear transport. Here, we predict magnetic field-induced nonlinear Hall effect in time-reversal symmetric Weyl semimetal. We show that the interplay of the band geometric quantities, such as the Berry curvature, and the magnetic part of the Lorentz force can give rise to finite nonlinear Hall conductivity that is linear in the magnetic field. Such nonlinear Hall conductivity can manifest through nonlinear transport measurement as well as nonlinear optical phenomena like photocurrent and the second harmonic generation.
