...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >Preparation of Cu-doped y-Fe_2O_3 nanowires with high coercivity by chemical vapor deposition
【24h】

Preparation of Cu-doped y-Fe_2O_3 nanowires with high coercivity by chemical vapor deposition

机译：化学气相沉积法制备高矫顽力的掺Cu y-Fe_2O_3纳米线

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

Iron oxides, including maghemite (γ-Fe_2O_3) and magnetite (Fe_3O_4), have been widely applied in many fields. For technological advances in the future, further improvements of their ferromagnetic properties are desirable. The development of iron ferrites with a large coercive field (H_c) is one of issues of consequence. For ferrites, however, enlarging the H_c value is not easy because of their low magnetocrystalling anisotropy constant. Here we report single-crystalline Cu-doped γ-Fe_2O_3 nanowires in which the controlled diameter (70-100 nm) and the graded Cu dopant (7,10, and 15%) are directly obtained by a simple chemical vapor deposition technique. In particular, the coercive value (over 2 T) of 10% Cu-doped Y-Fe_2O_3 nanowires is much higher than that (<80 Oe) of undoped γ-Fe_2O_3 nanowires at room temperature. On the basis of the experimental magnetization data, the achievement of such a higher coercive field of Cu-doped γ-Fe_2O_3 (10%) nanowires is tentatively suggested.
机译：包括磁赤铁矿（γ-Fe_2O_3）和磁铁矿（Fe_3O_4）的氧化铁已广泛应用于许多领域。为了将来的技术进步，需要进一步改善其铁磁性能。具有大矫顽场（H_c）的铁氧体的发展是后果的问题之一。但是，对于铁氧体，由于其磁晶各向异性常数低，因此增大H_c值并不容易。在这里，我们报告单晶掺杂Cu的γ-Fe_2O_3纳米线，其中通过简单的化学气相沉积技术直接获得可控制的直径（70-100 nm）和渐变的Cu掺杂剂（7,10和15％）。特别地，在室温下，掺杂10％Cu的Y-Fe_2O_3纳米线的矫顽值（超过2 T）远高于未掺杂γ-Fe_2O_3纳米线的矫顽值（<80 Oe）。根据实验磁化数据，初步提出了实现这种较高的Cu掺杂γ-Fe_2O_3（10％）纳米线矫顽场的方法。

著录项

  • 来源
    《Journal of Materials Research》 |2011年第13期|p.1634-1638|共5页
  • 作者

    Shao-Min Zhou; Shi-Yun Lou; Yong-Qiang Wang; Xi-Liang Chen; Li-Sheng Liu; Hong-Lei Yuan;

  • 作者单位

    Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004, People's Republic of China;

    Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004, People's Republic of China;

    Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004, People's Republic of China;

    Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004, People's Republic of China;

    Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004, People's Republic of China;

    Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 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