A new approach to electron-spin resonance absorption line shape function

2008 ◽  
Vol 49 (7) ◽  
pp. 073501 ◽  
Author(s):  
Nam Lyong Kang ◽  
Sang Don Choi
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Line Shape ◽  
Shape Function ◽  
Resonance Absorption ◽  
New Approach ◽  
Spin Resonance ◽  
Resonance Absorption Line ◽  
Line Shape Function ◽  
Absorption Line Shape

The Line Shape of Optical and Electron Spin Resonance Absorption under the Influence of Exciton Motion

1974 ◽  
Vol 29 (2) ◽  
pp. 282-295 ◽  
Author(s):  
P. Reineker
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Line Shape ◽  
Equations Of Motion ◽  
Time Correlation ◽  
Exact Expression ◽  
Transition Matrix Element ◽  
Resonance Absorption ◽  
Coherent Motion ◽  
Spin Resonance

The line shape of optical and electron spin resonance absorption under the influence of the coupled coherent and incoherent exciton motion is calculated analytically. The exciton motion is described by a stochastic Hamiltonian comprising both its coherent and its incoherent part. The coherent motion is represented by the transition matrix element and the incoherent one by the strengths of local and non-local fluctuations. Starting from this Hamiltonian, equations of motion of two-time correlation functions for two arbitrary operators are derived. Using these equations, the line shape of optical absorption of crystals containing two inequivalent molecules per unit cell is calculated. Furtheron an exact analytical expression for the ESR line shape of two differently oriented molecules is derived and discussed in detail as a function of the parameters of the model. From this exact expression for the line shape approximations for several limiting cases are obtained. A comparison between the exact and the approximate expressions is given.

Electron Spin Resonance Absorption of Centres with an Orthorhombicg-Tensor in Polycrystalline Substances

1986 ◽  
Vol 94 (1) ◽  
pp. 267-274 ◽  
Author(s):  
F. Callens ◽  
R. Verbeeck ◽  
L. Martens ◽  
P. Matthys ◽  
E. Boesman
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Resonance Absorption ◽  
Spin Resonance
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