Electron Spin Resonance Investigation of Fe3+ in Crystalline LiNBO3 Under the Polarized External Radiation
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We study the electron spin resonance line-width (ESRLW) of in crystalline ; the ESRLW is obtained using the projection operator method (POM) developed by Argyres and Sigel. The ESRLW is calculated to be axially symmetric about the and is analyzed by the spin Hamiltonian with an isotopic factor at a frequency of . The ESRLW increases exponentially as the temperature increases, and the ESRLW is almost constant in the high-temperature region (). This kind of temperature dependence of the ESRLW indicates a motional narrowing of the spectrum when ions substitute the ions in an off-center position. It is clear from this feature that there are two different regions in the graph of the temperature dependence of the ESRLW.
Abstract
We study the electron spin resonance line-width (ESRLW) of in crystalline ; the ESRLW is obtained using the projection operator method (POM) developed by Argyres and Sigel. The ESRLW is calculated to be axially symmetric about the and is analyzed by the spin Hamiltonian with an isotopic factor at a frequency of . The ESRLW increases exponentially as the temperature increases, and the ESRLW is almost constant in the high-temperature region (). This kind of temperature dependence of the ESRLW indicates a motional narrowing of the spectrum when ions substitute the ions in an off-center position. It is clear from this feature that there are two different regions in the graph of the temperature dependence of the ESRLW.
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