Magnetically induced Bragg scattering of electrons in quantum-dot crystals

被引：15

作者：

Elhassan, M ^{[1
]}

Akis, R

Bird, JP

Ferry, DK

Ida, T

Ishibashi, K

机构：

[1] Arizona State Univ, Dept Elect Engn, Nanostruct Res Grp, Tempe, AZ 85287 USA

[2] SUNY Buffalo, Dept Elect Engn, Buffalo, NY 14260 USA

[3] RIKEN, Inst Phys & Chem Res, Adv Device Lab, Wako, Saitama 3510198, Japan

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.70.205341

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate a novel manifestation of dynamic Bragg reflection in artificial quantum-dot crystals that is driven by the application of a magnetic field. This backscattering is coherently cascaded as the number of dots in the structure is increased, causing a superlinear damping of the electron wave function and the appearance of a series of gaps in the miniband spectrum. The evolution of the dynamic miniband structure as the magnetic field is varied gives rise to behavior analogous to a metal-insulator transition, which is manifest as a dramatic resonance in the magneto-resistance of the structures.

引用

页码：205341 / 1

页数：4

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