The temperature and oxygen partial pressure () dependent electrical conductivity of LiNbO, LiTaO, LiNbTaO (LNT) solid solutions up to 900 °C is presented. The electrical conductivity is found to be isotropic up to about 700 °C. Different Nb/Ta ratios do not affect activation energies at temperatures below 600 °C, which suggests an identical conduction mechanism, namely the migration of Li ions by means of Li vacancies. Above this temperature, noticeable deviations in the conductivity of Nb rich samples emerge due to strongly increasing electronic contributions.

中文翻译：

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铌酸锂-钽酸锂固溶体的氧分压和温度依赖性电导率

给出了在高达 900 °C 时 LiNbO、LiTaO、LiNbTaO (LNT) 固溶体的与温度和氧分压 () 相关的电导率。发现电导率在高达约 700 °C 时呈各向同性。在低于600℃的温度下，不同的Nb/Ta比率不会影响活化能，这表明相同的传导机制，即通过Li空位实现Li离子的迁移。高于此温度，由于电子贡献的强烈增加，富铌样品的电导率出现明显偏差。