Abstract
We have extended the concept of jellyfish fluctuations, which was originally developed for the ac conductivity of ionic solids at low-frequency and low-temperature ( σ LF–LT), to describe their microwave conductivity at room temperature and above ( σ MW–HT). The results for a series of potassium germanate glass confirm the previous correlation between the two regions of conductivity of a silicate glass, and indicate a common origin of σ LF–LT and σ MW–HT. A detailed analysis of the data in terms of a rather simplistic, phenomenological, asymmetric double well potential (ADWP) model shows that the nature of jellyfish is modified once the diffusive motion of potassium ions becomes significant above ∼200 K. Limitation of the ADWP model is noted again for describing the conductivity in the two regions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
