论文标题
在存在平行磁场的情况下,P型异质结构中的弱定位
Weak localization in p-type heterostructures in the presence of parallel magnetic field
论文作者
论文摘要
在面积内磁场的存在下为二维孔开发了弱定位理论。即使在孔动量中,Zeeman分裂也会导致自旋依赖性相改变量子干扰。对电导率的负校正表明平面磁场减少了两倍。在动量Zeeman Hole分裂中计算了由弱定位引起的经典弱垂直场的正磁导率。计算表明,在这两种低孔密度和高孔密度的情况下,电导率校正彼此非常接近。
Theory of weak localization is developed for two-dimensional holes in the presence of in-plane magnetic field. The Zeeman splitting even in the hole momentum results in the spin-dependent phase changing the quantum interference. The negative correction to the conductivity is shown to decrease by a factor of two by the in-plane magnetic field. The positive magnetoconductivity in a classically weak perpendicular field caused by the weak localization is calculated for both quadratic and quartic in momentum Zeeman hole splittings. Calculations show that the conductivity corrections are very close to each other in these two cases of low and high hole density.