Influence of cooling atmosphere on the structure,magnetization,and dielectric properties of CaBaCo_(4)O_(7)  

作　　者：Gaoshang Gong Minghao Wang Ruoshui Liu Yang Wu Lichen Wang Yongqiang Wang Baogen Shen 龚高尚;王明豪;刘若水;吴杨;王利晨;王永强;沈保根

机构地区：[1]School of Electronics and Information,Zhengzhou University of Light Industry,Zhengzhou 450000,China [2]Henan Key Laboratory of Magnetoelectronic Information Functional Materials,Zhengzhou University of Light Industry,Zhengzhou 450000,China [3]Ningbo Institute of Materials Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China

出　　处：《Chinese Physics B》2025年第4期585-589,共5页中国物理B(英文版)

基　　金：Project supported by the Key Research Project of Colleges and Universities of Henan Province(Grant No.23A140017);the Research Project of Department of Science and Technology of Henan Province(Grant No.242102231072);the National Natural Sciences Foundation of China(Grant No.52402336);the special fund of the Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences“New magnetic materials and structural devices for 5G communication”(Grant No.E41602QB01).

摘　　要：CaBaCo_(4)O_(7)has been widely studied because of its distinctive structure and magnetic properties.This study examined the influence of different cooling atmospheres on the structure,magnetic properties,and dielectric behavior of CaBaCo_(4)O_(7).Samples were cooled under different atmospheric conditions to assess these influences.Our findings indicate that reduced oxygen content leads to increased lattice distortion.Since oxygen atoms play a crucial role in mediating magnetic exchange,oxygen deficiency disrupts long-range magnetic order and promotes short-range antiferromagnetic interactions.Additionally,the cooling atmosphere significantly impacts grain size,thereby affecting the dielectric constant and dielectric loss.In the argon-cooled CaBaCo_(4)O_(7)(Ar)sample,oxygen deficiency reduced dielectric permittivity and increased dielectric loss.

关 键 词：CaBaCo_(4)O_(7) cooling atmosphere MAGNETIZATION DIELECTRIC 

分 类 号：O482.5[理学—固体物理]