Spin Relaxation Processes in Quantum Well Structures of Cd_{1-x}Mn_xTe/Cd_{1-x}Mg_xTe

• Authors: A. Khachapuridze , V. Ivanov , M. Godlewski , G. Karczewski
• Languages of publication: EN

Abstracts

EN

Fast spin relaxation of Mn^{2+} ions in a magnetic quantum well of CdMnTe with 1% Mn fraction is related to a very efficient spin-flip interaction between Mn ions and free carriers. This mechanism of spin relaxation becomes dominant at increased excitation densities. The observed response of the photoluminescence bands to the Mn^{2+} magnetic resonance indicates that free carriers are heated at the magnetic resonance conditions. A decrease in formation/recombination rates of free and trion excitons is observed. Donor bound exciton photoluminescence is enhanced, which we relate to delocalization of free excitons, caused by interaction with microwave heated free carriers.

Keywords

EN

71.35.Ji; 72.25.Rb; 76.70.Hb; 78.55.Et

Discipline

• 78.55.Et: II-VI semiconductors
• 71.35.Ji: Excitons in magnetic fields; magnetoexcitons
• 72.25.Rb: Spin relaxation and scattering
• 76.70.Hb: Optically detected magnetic resonance (ODMR)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2002
• Volume: 102
• Issue: 4-5
• Pages: 643-648

Dates

published

2002-10/11

received

2002-06-07

Contributors

author

A. Khachapuridze

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

V. Ivanov

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

M. Godlewski

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

G. Karczewski

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

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Identifiers

DOI

10.12693/APhysPolA.102.643