新型BiNaTiO - SrMnO固溶体材料的结构、光学和磁性特性

Structure, optical and magnetic properties of new BiNaTiO- SrMnO solid solution materials.

作者信息

Dung Dang Duc, Hung Nguyen The, Odkhuu Dorj

机构信息

Department of General Physics, School of Engineering Physics, Ha Noi University of Science and Technology, 1 Dai Co Viet road, Ha Noi, Viet Nam.

Department of Physics, Faculty of Basic and Fundamental Sciences, Viet Nam Maritime University, 484, Lach Tray street, Hai Phong city, Viet Nam.

出版信息

Sci Rep. 2019 Dec 3;9(1):18186. doi: 10.1038/s41598-019-54172-4.

DOI:10.1038/s41598-019-54172-4

PMID:31796779

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6890638/

Abstract

The new BiNaTiO-SrMnO solid solution materials were fabricated via sol-gel method. The random incorporation of Sr and Mn cations into host lattice of BiNaTiO resulted in structural distortion and influenced on the reduction of the optical band gap from 3.07 eV to 1.81 eV for pure BiNaTiO and 9 mol% SrMnO solid solution into BiNaTiO. The magnetic properties of BiNaTiO materials at room temperature were tuned via compensation of diamagnetic material with weak-ferromagnetism to ferromagnetism with low SrMnO content and combination of paramagnetism/antiferromagnetism-like and ferromagnetism with higher SrMnO content solid solution in BiNaTiO. The tunable magnetic and optical properties of lead-free ferroelectric materials was promising for their application to green electronic devices.

摘要

新型BiNaTiO-SrMnO固溶体材料通过溶胶-凝胶法制备。Sr和Mn阳离子随机掺入BiNaTiO的主体晶格中导致结构畸变，并影响了纯BiNaTiO以及9 mol% SrMnO固溶体掺入BiNaTiO时光学带隙从3.07 eV降至1.81 eV。BiNaTiO材料在室温下的磁性通过用弱铁磁性的抗磁性材料进行补偿来调节，低SrMnO含量时变为铁磁性，而在BiNaTiO中较高SrMnO含量的固溶体则是顺磁性/类反铁磁性与铁磁性的组合。无铅铁电材料的可调磁光特性使其在绿色电子器件中的应用前景广阔。