Excitonic dephasing in semimagnetic semiconductors

被引：9

作者：

Cundiff, ST

Hellman, R

Koch, M

Mackh, G

Waag, A

Landwehr, G

机构：

[1] UNIV MARBURG,FACHBEREICH PHYS,D-35032 MARBURG,GERMANY

[2] UNIV WURZBURG,INST PHYS,D-97074 WURZBURG,GERMANY

[3] PHYS TECH BUNDESANSTALT,D-38116 BRAUNSCHWEIG,GERMANY

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1996年 / 13卷 / 06期

关键词：

D O I：

10.1364/JOSAB.13.001263

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The presence of magnetic ions in a dilute semiconductor quantum well is shown to decrease dramatically the low-temperature excitonic dephasing time measured by transient four-wave mixing. The decrease is associated with the magnetic nature of the material. Surprisingly, the application of a magnetic field does not significantly change the dephasing time, which indicates that there must exist a fast dephasing mechanism in addition to the spin-spin interactions responsible for magnetic polaron formation. (C) 1996 Optical Society of America

引用

页码：1263 / 1267

页数：5

共 25 条

[1] ULTRAFAST FARADAY SPECTROSCOPY IN MAGNETIC SEMICONDUCTOR QUANTUM STRUCTURES [J].