关键词: Sr3Sn2O7/
Ca3Mn2O7/
介电性能/
磁性
English Abstract
(1-x)Sr3Sn2O7+xCa3Mn2O7 ceramics and their photo-electric characteristics
Huang Yu-Tian1,Wang Yu2,
Zhu Min-Min1,
Lü Ting1,
Yang Hong-Chun3,
Li Xiang2,
Wang Xiu-Zhang2,
Liu Mei-Feng2,
Li Shao-Zhen1
1.School of Mathematics and Physics, Hubei Polytechnic University, Huangshi 435003, China;
2.Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, China;
3.School of Materials Science and Engineering, Hubei Polytechnic University, Huangshi 435003, China
Fund Project:Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant Nos. 51302074, 11704109), the National Natural Science Foundation of China (Grant No. 11374147), and the Research Project of Hubei Provincial Department of Education, China (Grant No. Q20172501).Received Date:14 May 2018
Accepted Date:13 June 2018
Published Online:05 August 2018
Abstract:In order to obtain new hybrid improper ferroelectricity, the (1-x)Sr3Sn2O7+xCa3Mn2O7 (0 x 0.2) samples each with a Ruddlesden-Popper phase are prepared by the conventional solid-state reaction method. The phase purity is characterized by X-ray diffraction through using the GSAS refinement. The results indicate that (1-x)Sr3Sn2O7+xCa3Mn2O7 sample has an orthorhombic structure and its cell constants decrease with content x increasing. At room temperature, the dielectric constant decreases with frequency increasing. Sr3Sn2O7 exhibits diamagnetism. With increasing the content of Ca3Mn2O7, the sample presents diamagnetism, paramagnetism, weak ferromagnetic and paramagnetism in sequence. And the sample with x=0.1 has a weak ferromagnetic property. All these pave a way for selecting Ruddlesden-Popper multiferroic materials.
Keywords: Sr3Sn2O7/
Ca3Mn2O7/
dielectric property/
magnetic property
