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The Zeeman Splitting Effect on the Temperature Induced Spin Relaxation in Organic Semiconductors
YIN Sun * #
Department of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
*Correspondence author
#Submitted by
Subject:
Funding: the Research Fund for the Doctoral Program of Higher Education （No.No. 20090131120060）
Opened online:26 December 2012
Accepted by: none
Citation: YIN Sun.The Zeeman Splitting Effect on the Temperature Induced Spin Relaxation in Organic Semiconductors[OL]. [26 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4506317
 
 
The Zeeman energy splitting or the external magnetic field effect on the temperature induced spin relaxation in organic semiconductors is investigated. By numerical solving the Liouville equations of a four-level system with energy level fluctuation, we show that the relaxation processes of spin singlet state of a coupled polaron pair are not affected by the Zeeman splitting. The magnetic field has small effect on the spin relaxation of T0 spin triplet state. But for the other spin triplet states with parallel spins, the relaxation processes will have periodic oscillation around the saturation value in present of magnetic field. The period and the amplitude of oscillation depend on the values of Zeeman splitting. The application of the model on understanding the organic magnetic field effect is also dicusssed.
Keywords:theoretical condensed matter physics; Zeeman splitting; temperature; spin relaxation; magnetical field
 
 
 

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