Coherent electronic properties of coupled two-dimensional quantum dot arrays
Coherent electronic properties of coupled two-dimensional quantum dot arrays
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DOI：
10.1006/spmi.1996.0127
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发表时间：
1996-01-01
影响因子：
3.1
通讯作者：
DasSarma, S
中科院分区：
文献类型：
--
作者：
Kotlyar, R;DasSarma, S
在本文中，我们回顾了我们最近在Mott-Hubbard关联紧束缚模型上用数值精确对角化方法研究耦合二维量子点阵列的相干电子性质。我们预言了在横向磁场中的二维孤立量子点阵列中存在一种新的持续电流。我们计算了在库仑阻塞条件下，共振隧穿量子点阵列的电导谱。我们还计算了与偏置引线耦合的阵列的有效两端电容。(C)1996年学术出版社有限公司
In this paper we review our recent study of coherent electronic properties of coupled two-dimensional quantum dot arrays using numerical exact-diagonalization methods on a Mott-Hubbard type correlated tight-binding model. We predict the existence of a novel kind of persistent current in a two-dimensional isolated array of quantum dots in a transverse magnetic field. We calculate the conductance spectrum for resonant tunneling transport through a coherent two-dimensional array of quantum dots in the Coulomb Blockade regime. We also calculate the effective two-terminal capacitance of an array coupled to bias leads. (C) 1996 Academic Press Limited