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本文用正电子湮没技术研究了BaFCL晶体的不同氟氯比的正电子湮没参数,发现第一、第二寿命值及强度与氟氯比呈有规律的变化,说明阴离子空位F(CL)心对正电子湮没的第二成份有贡献。
Positron annihilation technique was used to study the positron annihilation parameters of different CFC ratios in BaFCL crystals. It was found that the first and second lifetimes and the intensity varied regularly with the CFC ratio, indicating that the anion vacancy F (CL) The second component of positron annihilation contributes.