Chin. Phys. Lett.  2014, Vol. 31 Issue (06): 067802    DOI: 10.1088/0256-307X/31/6/067802
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
A Model on the Mn Luminescence Band Redshift with Mn(II) Doping and Aggregation within CdS:Mn Microwires
MUHAMMAD Arshad Kamran, ZHANG Yong-You, LIU Rui-Bin**, SHI Li-Jie, ZOU Bing-Suo**
Beijing Key Lab of Nanophotonics and Ultrafine Optoeletronic Systems, Beijing Institute of Technology, Beijing 100081
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MUHAMMAD Arshad Kamran, ZHANG Yong-You, LIU Rui-Bin et al  2014 Chin. Phys. Lett. 31 067802
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Abstract

We report the microphoto-luminescence band redshifts with individual and multi-Mn(II) ion emissions within CdS microwires. The localized exciton magnetic polarons (LEMPs) corresponding to the – optical transitions of Mn(II) account for this shift. This LEMP emission from the double-, three- and four-Mn(II) ions with ferromagnetic coupling after photoexcitation can happen in diluted magnetic semiconductors, except for the individual Mn(II) doping. In addition, a simple spin-exchange polaronic model is established to account for these emission peaks well. Through this model, we can verify the local geometry of the Mn(II) ions in CdS microwires.

Published: 26 May 2014
PACS:  78.67.Lt (Quantum wires)  
  78.60.Lc (Optically stimulated luminescence)  
  75.75.Lf (Electronic structure of magnetic nanoparticles)  
  71.70.Ch (Crystal and ligand fields)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/31/6/067802       OR      https://cpl.iphy.ac.cn/Y2014/V31/I06/067802
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MUHAMMAD Arshad Kamran
ZHANG Yong-You
LIU Rui-Bin
SHI Li-Jie
ZOU Bing-Suo

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