...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Binary Mn-Si nanostructures prepared by focused electron beam induced deposition from the precursor SiH3Mn(CO)(5)
【24h】

Binary Mn-Si nanostructures prepared by focused electron beam induced deposition from the precursor SiH3Mn(CO)(5)

机译：二元Mn-Si纳米结构通过聚焦电子束诱导沉积来自前体SIH3MN（CO）（5）

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

Mixed-metal carbonyls are a family of compounds which can be used to fabricate bimetallic nanostructures by means of focused electron beam induced deposition. In the present work, we show that silicon-metal alloys can be prepared by using silyl-metal carbonyls. In particular, we employ the SiH3Mn(CO)(5) precursor to fabricate Mn-Si alloy nanowires, with composition of about 34 at% Mn, 17 at% Si, 31 at% C and 18 at% O, as revealed by energy dispersive x-ray analysis. Magnetotransport measurements are carried out on as-grown samples and on samples treated after-growth by low-energy electron irradiation. All the samples exhibit a quasi-metallic temperature-dependent behavior. Hall-effect measurements indicate either electron-like transport, for as-grown samples, or hole-like transport, for post-growth treated samples, respectively. Correspondingly, the charge carrier density increases from n approximate to 10(20) cm(-3) to n approximate to 10(22) cm(-3). We find a small negative transversal magnetoresistance, which depends on irradiation dose and temperature. Microstructural investigations carried out by transmission electron microscopy indicate that the samples are constituted by an amorphous Mn2Si phase embedded in a carbonaceous matrix. Additionally, in treated samples a novel Mn2SiO4 spinet oxide phase is observed.
机译：混合金属羰基化合物是可以使用的通过聚焦电子束诱导沉积的手段来制造双金属纳米结构化合物家族。在目前的工作中，我们表明，硅 - 金属合金可以通过使用甲硅烷基 - 金属羰基化合物来制备。特别是，我们采用SiH3Mn（CO）（5）的前体制造的Mn-Si合金纳米线，具有约34组合物％的Mn，17原子％的Si，31％C和18原子％O，通过能量所揭示色散X射线分析。磁输运测量在生长状态的样品和在后生长由低能量电子辐射处理过的样品进行。所有的样品表现出准金属温度依赖行为。霍尔效应测量电子状孔等，分别运输，如生长的样品，或运输，用于后生长处理的样品表明无论是。相应地，电荷载流子密度的增加从n个近似至10（20）厘米（-3）至n近似至10（22）厘米（-3）。我们发现小负横向磁阻，这取决于辐照剂量和温度。显微组织的调查通过传输进行电子显微镜表明，样品通过嵌入在碳质基体的无定形Mn2Si相构成。另外，处理过的样品中的新的Mn2SiO4尖晶石氧化物相是观察。

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