Record Details

Investigation of some temperature dependent ferroelectric properties of RDP crystal using double-time temperature dependent Green’s function technique and PLCM model

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Investigation of some temperature dependent ferroelectric properties of RDP crystal using double-time temperature dependent Green’s function technique and PLCM model
 
Creator Singh, Pawan
Khan, Muzaffar Iqbal
Upadhyay, Trilok Chandra
 
Subject RDP
Dielectric properties
Green’s function
Loss tangent
Soft mode frequency
 
Description 213-216
Rubidium dihydrogen crystal’s (RDP, RbH2PO4) ferroelectric and dielectric properties have been analyzed in the present paper. This crystal belongs to the family of KDP-type ferroelectric and has been extensively studied because of peculiar properties in the area of ferroelectrics. In the present study, we have added some higher-order anharmonic terms in the pseudospin lattice coupled mode model (PLCM) for RDP crystal and have used Green’s function technique to solve our different expressions here discussed. We have computed expressions for soft mode frequency, dielectric constant, and loss tangent. We have shown variation of these three properties with temperature and discussed their crystal structure before and after their ferroelectric transition point. We have used model constants from Ganguli. For a suitable temperature range variation of temperature and dielectric constant according to Curie-Weiss behavior can be seen in our result. We have also verified our obtained results to the experimental analysis.
 
Date 2021-01-18T05:39:22Z
2021-01-18T05:39:22Z
2020-09
 
Type Article
 
Identifier 2581-8198 (Online)
http://nopr.niscair.res.in/handle/123456789/55984
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source AIR Vol.02(3) [September 2020]