e**x
发帖数: 3 | 1 Assume we have a 2-dimensional electron system in Hall-bar geometry and an
external magnetic field perpendicular to the 2-DES. How can we determine the
charge carrier flow direction along the 2 edges in the edge channel picture
of the Quantum Hall Effect? Is the charge carrier flow direction solely
determined by the polarity of the external magnetic field, or dependent on
the combination of the polarity of the external magnetic field and the
charge carrier, as well as the flow direction of the n | e**x
发帖数: 3 | 2 顶一下，别沉了。
the
picture
【在 e**x 的大作中提到】
: Assume we have a 2-dimensional electron system in Hall-bar geometry and an
: external magnetic field perpendicular to the 2-DES. How can we determine the
: charge carrier flow direction along the 2 edges in the edge channel picture
: of the Quantum Hall Effect? Is the charge carrier flow direction solely
: determined by the polarity of the external magnetic field, or dependent on
: the combination of the polarity of the external magnetic field and the
: charge carrier, as well as the flow direction of the n
| U**S
发帖数: 34 | | e**x
发帖数: 3 | 4 惭愧, 不是作业, 呵呵. 以前相当然地从净电流的方向和洛仑兹力入手试图理解这里面
的关系, 后来发现明显与实验现象不符. Buettiker的PRB文章里谈到了这个问题, 但叙
述得似乎不是很具体.
【在 U**S 的大作中提到】
: 什么时候Due的作业呀？
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