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Crystal structure and magnetoelectric properties of CrFeO3-doped BaZr0.1Ti0.9O3 multiferroic ceramics
Radiation Physics and Chemistry ( IF 2.8 ) Pub Date : 2022-06-22 , DOI: 10.1016/j.radphyschem.2022.110344
A. Klinbumrung , P. Kidkhunthod , P. Jantaratana , R. Yimnirun , A. Prasatkhetragarn

Chromium ferrite-doped barium zirconate titanate multiferroic materials in (1-x)BaZr0.1Ti0.9O3 – (x)CrFeO3; BZT-CF) system, when x = 0, 2, 4, 6, 8 and 10 mol%, were prepared by the solid-state reaction technique. Phase formation, lattice parameter, and electronic state of materials were characterized by x-ray diffraction (XRD) and x-ray absorption near-edge spectroscopy (XANES) techniques. It was found that the undoped BZT ceramic showed a single tetragonal phase without the secondary phase. However, CF-doped BZT ceramic at 2–10 mol% reveals that the tetragonal phase was changed to the orthorhombic phase. Lattice parameter and dislocation density have increased with increasing CrFeO3 content, representing the crystal structure's imperfection in interesting material. The magnetic and magnetoelectric of materials were characterized by the vibrating sample magnetometer (VSM) technique. It was found that all-ceramic exhibits a paramagnetic behavior. However, all doped ceramics showed a magnetic field response value better than undoped, with a maximum magnetodielectric coefficient (ME) of 18.3 × 10−3 at 2 mol% of CF-doped.



中文翻译:

CrFeO3掺杂BaZr0.1Ti0.9O3多铁性陶瓷的晶体结构和磁电性能

(1-x)BaZr 0.1 Ti 0.9 O 3 - (x)CrFeO 3中掺铬铁氧体锆钛酸钡多铁材料;BZT-CF) 体系,当 x = 0, 2, 4, 6, 8 和 10 mol% 时,通过固态反应技术制备。通过 X 射线衍射 (XRD) 和 X 射线吸收近边光谱 (XANES) 技术表征材料的相形成、晶格参数和电子状态。发现未掺杂的 BZT 陶瓷呈现出单一的四方相而没有第二相。然而,2-10 mol% 的 CF 掺杂 BZT 陶瓷表明四方相变为正交相。晶格参数和位错密度随着CrFeO 3的增加而增加含量,代表有趣材料中晶体结构的缺陷。采用振动样品磁强计(VSM)技术表征材料的磁性和磁电特性。发现全陶瓷表现出顺磁行为。然而,所有掺杂陶瓷都表现出比未掺杂更好的磁场响应值, 在 2 mol% 的 CF掺杂时,最大磁介电系数 (ME) 为 18.3 × 10 -3 。

更新日期:2022-06-26
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