Magnetic Focusing of Composite Fermions through Arrays of Cavities.
Magnetic Focusing of Composite Fermions through Arrays of Cavities.
复制标题
复合费米子通过空腔阵列的磁聚焦。
DOI：
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发表时间：
1996
影响因子：
8.6
通讯作者：
G. Weimann
中科院分区：
文献类型：
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作者：
J. H. Smet;Dieter Weiss;Robert H. Blick;Gerd Lütjering;K. Klitzing;R. Fleischmann;R. Ketzmerick;T. Geisel;G. Weimann
在长度 L 范围从 500 nm 到 1.2 mm 接近填充因子 n 1y2 的邻接方形腔阵列中研究了磁阻 Rxx。 Rxx中的最大值出现在满足腔间距和复合费米子回旋半径之间的磁聚焦条件的有效磁场值，以及当复合费米子沿与电子方向相反的方向偏转时的有效磁场方向。将实验数据与基于软势中复合费米子的准经典动力学的模拟结果进行比较。 [S0031-9007(96)01048-4]
The magnetoresistance Rxx was investigated in arrays of abutted square cavities with lengths L ranging from 500 nm to 1.2 mm near filling factor n 1y2. Maxima in Rxx occur for effective magnetic field values satisfying the magnetic focusing condition between the cavity spacing and the cyclotron radius of composite fermions, also for the effective magnetic field direction when composite fermions are deflected in the direction opposite to that of electrons. The experimental data are compared with simulation results based on a quasiclassical dynamics of composite fermions in soft potentials. [S0031-9007(96)01048-4]