Curie-Temperature Variation and Microwave Absorption in Perovskites Containing Substitutional Impurities

Abstract
Keywords
Introduction
Materials and Methods
Results
Discussion
Conclusion
Acknowledgement
Funding Sources
Conflict of Interest
Data Availability Statement
Ethics Statement
References

Article | Open Access

Curie-Temperature Variation and Microwave Absorption in Perovskites Containing Substitutional Impurities

Volume 7, Number 2

M. S. Yadav and S. C. Deorani

Theoretical Physics Division, Department of Physics, R. R. Autonomous College Alwar - 301001 (India).

DOI : http://dx.doi.org/10.13005/msri/070225

Download this article as:

ABSTRACT:

Using thermal-double time Green?s function method, Fourier transform and Dyson?s equation, theoretical expressions are obtained for Curie-temperature and microwave absorption coefficient for a ferroelectric cubic crystal containing defect (substitutional impurities). Chang in Curie-temperature occures due to impurity content in the crystal. Microwave loss deviates from Curie-Wiess law at high temperature due to ?T2 term being significant.

KEYWORDS:

Curie-temperature; Green?s function; Hamiltonion; Microwave loss; Dyson?s equation

Article Metrics