...
首页> 外文期刊>Physical review >Ferroelectricity and superparamagnetism in Sr/Ti nonstoichiometric SrTiO_3
【24h】

Ferroelectricity and superparamagnetism in Sr/Ti nonstoichiometric SrTiO_3

机译:Sr / Ti非化学计量SrTiO_3中的铁电和超顺磁性

获取原文
获取原文并翻译 | 示例
           

摘要

The effect of Sr/Ti nonstoichiometry on the ferroelectricity and magnetism in polycrystalline SrTiO_3 is investigated by the dielectric, ferroelectric, Raman, and magnetic characterizations. It revealed that the nonstoichiometric SrTiO_3 exhibits both ferroelectric polarization and superparamagnetism, which increase with the degree of nonstoichiometry. It is argued that the antisite-like defects with net local dipoles and magnetic moments contribute to the ferroelectricity and superparamagnetism, confirmed by the first-principles calculations.
机译:通过介电,铁电,拉曼和磁性表征研究了Sr / Ti非化学计量对多晶SrTiO_3中铁电和磁性的影响。结果表明,非化学计量的SrTiO_3表现出铁电极化和超顺磁性,并随非化学计量的程度而增加。有人认为,具有净局部偶极子和磁矩的反部位样缺陷有助于铁电和超顺磁性,这一点已被第一性原理计算所证实。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号