Hi, I'm new to this field, and I am currently studying SmCoO3. When plotting the AC conductivity, I observed that the presence of a large polaron is responsible for this behavior, as suggested by Mott's theory. Furthermore, it exhibited a non-Debye type behavior. I attempted to determine the frequency exponent factor and found it to be greater than 1. Is it possible for the exponent factor to exceed 1? Can the frequency factor (S) be applied to all lanthanide cobalties or not?. What does really mean to be S is more than 1?.