Synthesis, structural, dielectric, and magnetic properties of Re5Ti4CrO17 (Re = La, Nd)

被引：1
|
作者：
Muhammad, Raz [1 ]
Shah, Haider Ali [1 ]
Hussain, Fayaz [2 ]
Ahmed, Ejaz [1 ]
Lei, Wen [3 ,4 ]
Wang, Dawei [5 ]
机构：
[1] Abdul Wali Khan Univ Mardan, Dept Phys, Garden Campus, Mardan 23200, KP, Pakistan
[2] NED Univ Engn & Technol, Dept Mat Engn, Karachi 75270, Pakistan
[3] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China
[4] WZ AMI Huazhong Univ Sci & Technol, Wenzhou 325035, Zhejiang, Peoples R China
[5] Chinese Acad Sci, Shenzhen Inst Adv Elect Mat, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2022年 / 33卷 / 04期
关键词：
MICROWAVE; RELAXATION; CERAMICS;
D O I：
10.1007/s10854-021-07423-y
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Layered perovskite structured Re5Ti4CrO17 (Re = La, Nd) ceramics were synthesized via a sol-gel method. Rietveld analysis and Raman spectroscopy showed that the samples crystallize into an orthorhombic crystal structure with the space group Pmnn. The samples showed a dense and homogeneous microstructure when sintered at 1600 degrees C for 4 h and the grain size was found to be 2.64-4.93 mu m. La5Ti4CrO17 and Nd5Ti4CrO17 exhibited dielectric constant (epsilon(r)) similar to 23 and 12 at 1 MHz, respectively, which was dependent on the dielectric polarizability and bond lengths. Dielectric loss at room temperature was found to be <= 0.05 (at 1 MHz) for La5Ti4CrO17 and Nd5Ti4CrO17, respectively. Furthermore, magnetic study of the samples showed a paramagnetic behavior.
引用
收藏
页码：2166 / 2172
页数：7
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