Title of article
Dynamics in magneto-optical properties of digital magnetic Zn1−xCdxSe quantum wells
Author/Authors
E Nakayama، نويسنده , , K Kayanuma، نويسنده , , T Tomita، نويسنده , , A Murayama، نويسنده , , Z.H. Chen، نويسنده , , Y Oka، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2004
Pages
5
From page
1027
To page
1031
Abstract
We have studied dynamics in magneto-optical properties of digital magnetic Zn1−xCdxSe quantum wells (QWs). Various types of MnSe layers were digitally doped in the Zn1−xCdxSe QWs. The giant Zeeman shift energy and the field-induced enhancement of the photoluminescence (PL) intensity of excitons depend on the digital-doping profile. This can be attributed to the spatial overlap of the exciton wavefunction with the 0.5 monatomic-thick effective paramagnetic layers at the interfaces between the antiferromagnetic MnSe layers and non-magnetic Zn1−xCdxSe layers. The exciton magnetic polaron (MP) formation energy as large as View the MathML source is observed in time-resolved PL spectra for the digital magnetic QWs. The MP formation energy and time are also affected by the digital-doping profile.
Keywords
Exciton magnetic polaron , Quantum well , Digital doping , Diluted magnetic semiconductor
Journal title
Physica E Low-dimensional Systems and Nanostructures
Serial Year
2004
Journal title
Physica E Low-dimensional Systems and Nanostructures
Record number
1051124
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