OBSERVATION OF MAGNETIC FOCUSING IN 2-DIMENSIONAL HOLE SYSTEMS
OBSERVATION OF MAGNETIC FOCUSING IN 2-DIMENSIONAL HOLE SYSTEMS
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DOI：
10.1063/1.108441
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发表时间：
1992-10-05
影响因子：
4
通讯作者：
SHAYEGAN, M
中科院分区：
文献类型：
--
作者：
HEREMANS, JJ;SANTOS, MB;SHAYEGAN, M
我们报告了首次观察到横向磁孔聚焦在限制在 (311) A GaAs 衬底上生长的方形和三角形量子阱中的高质量二维空穴系统中。结果表明，弹道空穴传输距离可达 11 μm，使我们能够探测这两种类型的约束在 k 空间中的恒定能量轮廓。
We report the first observation of transverse magnetic hole focusing in high quality two-dimensional hole systems confined in square and triangular quantum wells grown on (311) A GaAs substrates. The results demonstrate ballistic hole transport over distances up to 11 mum and allow us to probe the constant energy contours in k-space for these two types of confinement.