Abstract
A detailed study of magnetic resonance (EPR, ENDOR) spectra of lithium niobate (LN) crystals with different compositions, diverse modifiers and various probe impurities was carried out. Several new chromium and iron centers have been found. Possible impurity locations and charge compensation mechanisms for crystals of different compositions are proposed. The obtained results clearly show a quantitative and qualitative difference of impurity related material properties for congruent LN, crystals with extremely low concentration of intrinsic defects and magnesium doped LN. It is suggested that the strong interrelation found between subsystems of intrinsic and extrinsic defects can be used to optimize LN crystal properties for advanced applications.
Published Version
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