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Infrared absorption spectra measured at the temperatures in congruent LN crystal containing 6.1 mol % Mg.
Infrared absorption spectra measured at in SLN crystals containing 0.6, 1.3, 2.5, and 4.3 mol % Mg. The spectra are normalized by the sum of the band areas for comparability reasons.
Determination of the thermal energy difference of ions between the below and above threshold defect structures in LN:Mg samples with different Li/Nb ratio and Mg content.
The area ratios at as a function of the calculated Mg surplus concentration.
The composition of the investigated LN:Mg samples. The parameters , , and correspond to matrix composition, Mg concentration of the sample, and the calculated threshold Mg concentration , respectively.
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