Electron-hole complexes in individual semimagnetic quantum dots

被引：2

作者：

Dorozhkin, PS ^{[1
]}

Brichkin, AS

Kulakovskii, VD

Chernenko, AV

Zaitsev, SV

Ivanov, SV

Toropov, AA

机构：

[1] Chernogolovka Solid State Phys Inst, Chernogolovka 142432, Russia

[2] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2005年 / 202卷 / 14期

关键词：

D O I：

10.1002/pssa.200562013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We compare magneto-photoluminescence spectra of individual semimagnetic quantum dots (QDs) with different strengths of exchange interaction between a localized exciton and surrounding magnetic ions. The spectra of individual QDs with strong magnetic exchange interaction show a single line corresponding to a ground-state exciton. In QDs with weak interaction, exciton and biexciton spectra are identified, both showing a fine structure due to electron-hole exchange interaction. The anticrossing of dark and bright exciton states in low-symmetry QDs is demonstrated in magnetic fields in the Faraday geometry.

引用

页码：2609 / 2613

页数：5

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