...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Spin-polarized charge transfer induced by transition metal adsorption on graphene
【24h】

Spin-polarized charge transfer induced by transition metal adsorption on graphene

机译：过渡金属吸附在石墨烯上引起的自旋极化电荷转移

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 electronic properties of transition metal atoms adsorbed on a graphene sheet are analyzed in the framework of the quantum theory of atoms in molecules (QTAIM). Particular attention is devoted to the spin dependence of the charge rearrangement upon the adsorption of magnetic adatoms. A comparison between the band structures and the charges in the atomic basins makes it possible to shed light on the different roles that the spin components play in the bond formation. This aspect is likely to be crucial in determining the spin-dependent properties required in spintronics applications and could help in tailoring them. We found that for early (Sc, Ti, and V) and late (Fe, Co) transition metals the two spin populations behave very differently, being involved in the bonding only the majority or the minority spin component for the lighter and heavier adsorbates, respectively. We expect that the response properties, in particular those related to the states at the Fermi level, will be very different for the two spin components. As a by-product of our study it becomes apparent that the QTAIM analysis is not the most suitable tool for catching the charge transfer phenomenon in the case of weakly interacting electronic populations.
机译：在分子中原子的量子理论（QTAIM）的框架内分析了吸附在石墨烯片上的过渡金属原子的电子性质。特别注意的是电荷重排对磁性原子吸附的自旋依赖性。能带结构与原子盆中电荷之间的比较使我们有可能阐明自旋成分在键形成中所起的不同作用。在确定自旋电子应用中所需的自旋相关特性方面，这一方面可能至关重要，并且可以帮助定制它们。我们发现，对于早期（Sc，Ti和V）和晚期（Fe，Co）过渡金属，两种自旋种群的行为有很大不同，它们仅涉及大多数或少数自旋组分对较轻和较重吸附物的键合，分别。我们期望两个自旋分量的响应特性（尤其是与费米能级相关的响应特性）会非常不同。作为我们研究的副产品，很明显，在电子种群相互作用较弱的情况下，QTAIM分析不是捕获电荷转移现象的最合适工具。

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