• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Defect ferromagnetism in SnO2:Zn2+ hierarchical nanostructures: correlation between structural, electronic and magnetic properties
【24h】

Defect ferromagnetism in SnO2:Zn2+ hierarchical nanostructures: correlation between structural, electronic and magnetic properties

机译：SnO2中的缺陷铁磁磁性：Zn2 +分层纳米结构：结构，电子和磁性的相关性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We report on the ferromagnetism of Sn1-xZnxO2 (x = 0.1) hierarchical nanostructures with various morphologies synthesized by a solvothermal route. A room temperature ferromagnetic and paramagnetic response was observed for all compositions, with a maximum in ferromagnetism for x = 0.04. The ferromagnetic behaviour was found to correlate with the presence of zinc on substitutional Sn sites and with a low oxygen vacancy concentration in the samples. The morphology of the nanostructures varied with zinc concentration. The strongest ferromagnetic response was observed in nanostructures with well-formed shapes, having nanoneedles on their surfaces. These nanoneedles consist of (110) and (101) planes, which are understood to be important in stabilizing the ferromagnetic defects. At higher zinc concentration the nanostructures become eroded and agglomerated, a phenomenon accompanied with a strong decrease in their ferromagnetic response. The observed trends are explained in the light of recent computational studies that discuss the relative stability of ferromagnetic defects on various surfaces and the role of oxygen vacancies in degrading ferromagnetism via an increase in free electron concentration.
机译：我们的Sn1上-xZnxO2的铁磁性报告（X LT; = 0.1）的分层的纳米结构与由溶剂热合成路线合成各种形态。观察到室温铁磁和顺磁性响应对于所有组合物，与铁磁性的最大对于x = 0.04。铁磁行为被发现关联与锌对锡置换场所和与样品中的低氧空位浓度的存在。纳米结构的形态与锌浓度变化。在纳米结构中观察到与合式形状最强铁磁响应，其表面上具有纳米针。这些纳米针组成的（110）和（101）面，其被理解为在稳定铁磁缺陷重要。在较高的锌浓度在纳米结构而受到腐蚀和附聚，伴随着它们的铁磁响应强烈降低的现象。所观察到的趋势是最近计算研究，讨论各种表面上铁磁缺陷的相对稳定性和氧空位在降解经由铁磁性的增加自由电子浓度的作用的光进行说明。

著录项

  • 来源
    《RSC Advances》 |2019年第7期|共10页
  • 作者

    Akbar S.; Hasanain S. K.; Ivashenko O.; Dutka M. V.; Akhtar N.; De Hosson J. Th. M.; Ali N. Z.; Rudolf P.;

  • 作者单位

    Univ Groningen Zernike Inst Adv Mat Nijenborgh 4 NL-9747 AG Groningen Netherlands;

    Quaid I Azam Univ Dept Phys Islamabad Pakistan;

    Univ Groningen Zernike Inst Adv Mat Nijenborgh 4 NL-9747 AG Groningen Netherlands;

    Univ Groningen Zernike Inst Adv Mat Nijenborgh 4 NL-9747 AG Groningen Netherlands;

    Univ Groningen Zernike Inst Adv Mat Nijenborgh 4 NL-9747 AG Groningen Netherlands;

    Univ Groningen Zernike Inst Adv Mat Nijenborgh 4 NL-9747 AG Groningen Netherlands;

    Quaid I Azam Univ Campus Natl Ctr Phys Islamabad 45320 Pakistan;

    Univ Groningen Zernike Inst Adv Mat Nijenborgh 4 NL-9747 AG Groningen Netherlands;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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