论文标题
在强磁场中半法的磁倍率和平面霍尔效应的角度依赖性
Angular dependence of magnetoresistance and planar Hall effect in semimetals in strong magnetic fields
论文作者
论文摘要
半经典运输理论对于研究驱动磁效应特别有力。通常，半经典理论仅适用于弱领域，因为它不考虑Landau量化。在本文中，我们通过考虑半学中载体密度的田间依赖性来扩展常规的半经典理论。扩展的半经典理论甚至适用于强大的量化量化的强大领域。使用这种新方法，我们解释了抗磁场随着磁场的增加而解释了横向磁阻（TMR），各向异性磁磁性（AMR）和Planar Hall效应（PHE）的质量变化。这揭示了最近在半明确匹马物中观察到的非平凡场诱导的TMR，AMR和PHE变化的难题。
The semiclassical transport theory is especially powerful for investigating galvanomagnetic effects. Generally, the semiclassical theory is applicable only in weak fields because it does not consider Landau quantization. Herein, we extend the conventional semiclassical theory by considering Landau quantization through the field dependence of carrier density in semimetals. The extended semiclassical theory is applicable even in strong fields, where Landau quantization is noticeable. Using this new approach, we explain the qualitative change in the angular dependence of transverse magnetoresistance (TMR), anisotropic magnetoresistance (AMR), and planar Hall effect (PHE) in bismuth with an increase in the magnetic field. This unveils the puzzle of nontrivial field-induced changes in TMR, AMR, and PHE observed recently in semimetal bismuth.
