Scaling behavior of different shapes of hysteresis loops and recoverable energy storage density in Na_(0.5)Bi_(0.5)TiO_(3), K_(0.5)Bi_(0.5)TiO_(3), and Na_(0.25)K_(0.25)Bi_(0.5)TiO_(3) ferroelectrics

作     者：Krishnarjun Banerjee Saket Asthana Krishnarjun Banerjee;Saket Asthana

作者机构：Advanced Functional Materials LaboratoryDepartment of PhysicsIndian Institute of Technology HyderabadKandiTelangana502284India 

出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)

年 卷 期：2022年第8卷第4期

页      面：918-927页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Author SA gratefully acknowledges the financial support pro-vided by the CSIR-EMRII(Ref.No.0194/NS) SERB,Department of Science and Technology(CRG/2020/001509) India to carry out this work.Author KB acknowledges DST-INSPIRE,India(Fellowship Code No.IF160462)for financial assistance 

主　　题：Scaling Recoverable energy storage density Lead free ferroelectric 

摘      要：In this work,the dependency of the polarization(P)-electric field(E)loop area A of lead free ferro-electrics Na_(0.5)Bi_(0.5)TiO_(3)(NBT), K_(0.5)Bi_(0.5)TiO_(3)(KBT),and Na_(0.25)K_(0.25)Bi_(0.5)TiO_(3)(NKBT)on the amplitude(E0)of the electric field is *** on the nature of the hysteresis loop with increasing E0,the lnA versus lnE0 graph is divided into three stages and the scaling exponents of each stage are *** the third stage,NBT,KBT,and NKBT show different shapes of P-E loops(square,slanted and pinched,respectively).Although,almost similar slopes in the third stage are obtained from the lnA versus lnE0 graphs of KBT and NKBT,the formation of pinched P-E loop of NKBT is discussed based on the current-time curve under a complete cycle of the applied electric *** shape of the P-E loop also affects the recoverable energy storage density(Wrec)of the *** to the scaling of A,the variation of lnWrec with lnE0 of NBT,KBT and NKBT are ***,three stages are only noticed in the lnWrec-lnE0 curve of pinched P-E loop(NKBT),whereas lnWrec linearly increases with lnE0 for square and slanted P-E *** type of behavior of Wrec of NKBT is explained based on the reversible domain switching mechanism of the pinched P-E loop.