首页> 外文期刊>Nano letters >Nonlocal exchange interaction removes half-metallicity in graphene nanoribbons
【24h】

Nonlocal exchange interaction removes half-metallicity in graphene nanoribbons

机译:非局部交换相互作用消除了石墨烯纳米带中的半金属性

获取原文
获取原文并翻译 | 示例
           

摘要

Band gap studies of zigzag-edge graphene ribbons are presented. While earlier calculations at LDA level show that zigzag-edge graphene ribbons become half-metallic when cross-ribbon electric fields are applied, our calculations with hybrid density functional demonstrate that finite graphene ribbons behave as half-semiconductors. The spin-dependent band gap can be changed in a wide range, making possible many applications in spintronics.
机译:提出了锯齿形边缘石墨烯带的带隙研究。尽管较早的LDA级计算表明,当施加交叉带状电场时,锯齿形边缘的石墨烯带会变成半金属,而我们的混合密度函数计算表明有限的石墨烯带的行为像半半导体一样。自旋相关的带隙可以在很宽的范围内变化,从而使自旋电子学中的许多应用成为可能。

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