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

页码：2166 / 2172

页数：7

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