Levy statistics and anomalous transport in quantum-dot arrays

被引：36

作者：

Novikov, DS

Drndic, M

Levitov, LS

Kastner, MA

Jarosz, MV

Bawendi, MG

机构：

[1] MIT, Ctr Mat Sci & Engn, Dept Phys, Cambridge, MA 02139 USA

[2] MIT, Ctr Mat Sci & Engn, Dept Chem, Cambridge, MA 02139 USA

[3] Princeton Univ, Dept Elect Engn, Princeton, NJ 08540 USA

[4] Princeton Univ, Dept Phys, Princeton, NJ 08540 USA

[5] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.72.075309

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A model of transport is proposed to explain power-law current transients and memory phenomena observed in partially ordered arrays of semiconducting nanocrystals. The model describes electron transport by a stationary Levy process of transmission events and thereby requires no time dependence of system properties. The waiting time distribution with a characteristic long tail gives rise to a nonstationary response in the presence of a voltage pulse. We report on noise measurements that agree well with the predicted non-Poissonian fluctuations in current, and discuss possible mechanisms leading to this behavior.

引用

页数：7

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