首页> 外文OA文献 >Many-body exchange-correlation effects in the lowest subband of semiconductor quantum wires
【2h】

Many-body exchange-correlation effects in the lowest subband of semiconductor quantum wires

机译:最低子带中的多体交换相关效应   半导体量子线

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

We consider theoretically the electron--electron interaction inducedexchange-correlation effects in the lowest subband of a quasi-one-dimensionalGaAs quantum wire structures. We calculate, within the leading order dynamicalscreening approximation ({\em i.e.} the so-called $GW$ approximation of theelectron gas theory), the electron self-energy, spectral function, momentumdistribution function, inelastic scattering rate, band gap renormalization,and, the many-body renormalization factor both at zero and finite temperatures,and, both with and without impurity scattering effects. We also calculate theeffects of finite temperatures and finite impurity scattering on the many-bodyproperties. We propose the possibility of a hot-electron transistor device witha large negative differential resistance which is based on the sudden onset ofplasmon emission by energetic ballistic electrons in one dimension. The issueof the existence or non-existence of the Fermi surface among the interactingone-dimensional quantum wire electrons is critically discussed based on ournumerical results.
机译:我们从理论上考虑了准一维GaAs量子线结构最低子带中的电子-电子相互作用诱导的交换相关效应。我们在前导动态筛选近似(电子气体理论的所谓$ GW $近似)内计算电子自能,谱函数,动量分布函数,非弹性散射率,带隙重归一化和,在零和有限温度下的多体重归一化因子,以及有无杂质散射效应。我们还计算了有限温度和有限杂质散射对多体性质的影响。我们提出了一种具有大的负微分电阻的热电子晶体管器件的可能性,这是基于一维高能弹道电子突然引起的等离激元发射。基于数值结果,对一维相互作用的量子线电子中费米面的存在与否进行了严格的讨论。

著录项

  • 作者单位
  • 年度 1993
  • 总页数
  • 原文格式 PDF
  • 正文语种 {"code":"en","name":"English","id":9}
  • 中图分类

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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