Title: On the magnetotransport of Weyl semimetals due to the chiral anomaly Show Chinese title

Title: 关于手征反常导致的外尔半金属磁输运特性

Abstract: We study electric field and temperature gradient driven magnetoconductivity of a Weyl semimetal system. To analyze the responses, we utilize the kinetic equation with semiclassical equations of motion modified by the Berry curvature and orbital magnetization of the wave-packet. Apart from known positive quadratic magnetoconductivity, we show that due to chiral anomaly, the magnetconductivity can become non-analytic function of the magnetic field, proportional to 3/2 power of the magnetic field at finite temperatures. We also show that time-reversal symmetry breaking tilt of the Dirac cones results in linear magnetoconductivity. This is due to one-dimensional chiral anomaly the tilt is responsible for. Show Chinese abstract

Abstract: 我们研究了外加电场和温度梯度驱动的外尔半金属体系的磁电导率。 为了分析响应，我们利用了考虑波包的贝里曲率和轨道磁化的半经典运动方程的动能方程。 除了已知的正二次磁电导率外，我们表明由于手征异常，磁电导率可以成为磁场所的非解析函数，在有限温度下与磁场所的3/2次方成比例。 我们还表明，狄拉克锥的时间反演对称性破缺倾斜导致线性磁电导率。 这是由于一维手征异常，倾斜所引起的。