• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>8th Asian Conference on Solid State Ionics: Trends in the New Millennium; Dec 15-19, 2002; Langkawi, Malaysia >SYNTHESIS, STRUCTURE AND ELECTRONIC PROPERTIES OF ANIONICALLY MODIFIED ANATASE
【24h】

SYNTHESIS, STRUCTURE AND ELECTRONIC PROPERTIES OF ANIONICALLY MODIFIED ANATASE

机译：阴离子修饰的锐钛矿的合成，结构和电子性质

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

The synthesis and evaluation of structure and electronic properties of materials featuring mixed anions remains largely an unexplored area of research. In this communication, we report our preliminary results on the structure, electrical and magnetic properties of cobalt-doped titanium nitride-fluorides. Synthesis of these phases has been accomplished by a low-temperature ammonolysis of metal fluorides at various temperatures in the range 300-700℃. The Co-doped TiNF is shown to adopt an anatase-like structure (space group I 41/amd) at low temperatures. A transformation to rutile-like phase is observed when the anatase form of the nitride-fluoride is heated to temperatures above 600℃ in ammonia atmosphere. The temperature dependent electrical resistivity measurements established the semiconducting nature of the sample with variable-range-hopping. Field dependent magnetization loops confirmed the existence of ferromagnetism at room temperature. Results of this study will be compared to the recent reports on the cobalt-doped TiO_2 (anatase) proposed for spintronics applications.
机译：具有混合阴离子的材料的结构和电子性能的合成和评估在很大程度上仍是一个尚未探索的领域。在本次交流中，我们报告了关于掺杂钴的氮化钛氟化物的结构，电和磁性能的初步结果。这些相的合成是通过在300-700℃的各种温度下对金属氟化物进行低温氨解来完成的。示出了在低温下Co掺杂的TiNF采用锐钛矿样结构（空间群I 41 / amd）。当在氨气中将锐钛型氟化物加热到600℃以上时，观察到金红石相的转变。温度相关的电阻率测量建立了具有可变范围跳变的样品的半导体性质。场相关的磁化回路证实了室温下铁磁性的存在。这项研究的结果将与最近提出的用于自旋电子学应用的钴掺杂的TiO_2（锐钛矿）的报告进行比较。

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