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本文利用穆斯堡尔谱技术,研究了FeCl_3·6H_2O样品的温度驰豫过程。随温度升高,驰豫频率加快,不对称双峰逐渐对称。四极劈裂逐渐减小,表明这一过程主要是由于顺磁自旋驰豫过程的作用,它不同于Goldanskii一Gargagin效应,由此可以区分电子顺磁自旋驰豫过程和GOldskii一Gargagin效应。不对称线宽也可能由于样品厚度影响所致,但在本实验中可忽略这种效应。随温度升高,由Q·S值突变可以判断相转点及物相转变点温度。
In this paper, the temperature relaxation process of FeCl 3 · 6H 2 O samples was studied by using Mössbauer technique. As the temperature increases, the relaxation frequency increases, asymmetric bimodal symmetry gradually. The quadrupole splitting decreases gradually, indicating that this process is mainly due to the paramagnetic spin relaxation process, which is different from the Goldanskii-Gargagin effect, which can distinguish the electron paramagnetic spin relaxation process and the GOldskii-Gargagin effect . The asymmetrical line width may also be due to the influence of sample thickness, but this effect can be neglected in this experiment. As the temperature increases, the temperature of the phase transition point and the phase transition point can be judged from the sudden change of Q · S value.