...
首页> 外文期刊>Physica status solidi, B. Basic research >Charge ordering in low dimensional organic conductors: Structural aspects
【24h】

Charge ordering in low dimensional organic conductors: Structural aspects

机译:低维有机导体中的电荷排序:结构方面

获取原文
获取原文并翻译 | 示例
           

摘要

The paper points out the importance of the coupling between anions and donors in order to achieve the 4kF charge localization observed in (TMTTF)_2PF_6, δ-(EDT-TTFCONMe_2)_2Br and (o-DMTTF)_2C1/Br salts, the 2kFcharge density wave (CDW) ground state of α-(BEDTTTF)_2KHg(SCN)_4 and the metal to insulator transition of α(BEDT-TTF)_2I_3. This coupling leads to a cooperative displace-ment wave of the anions accompanied by a modulation of the density of it holes on the donors. We distinguish two principal anion–donor coupling mechanisms: a direct mechanism via the Hartree anion potential on donor sites and an indirect mechanism via the polarization of o bonds activated by the modification of the H bonds network. Both kinds of interaction are tuned by the relative displacement of the anions with respect to the donors.
机译:文章指出,为了实现在(TMTTF)_2PF_6,δ-(EDT-TTFCONMe_2)_2Br和(o-DMTTF)_2C1 / Br盐中观察到的4kF电荷局部化,2kF电荷密度,阴离子与给体之间偶联的重要性。 α-(BEDTTTF)_2KHg(SCN)_4的波(CDW)基态和α(BEDT-TTF)_2I_3的金属到绝缘体的转变。这种耦合导致阴离子的协同位移波,伴随着其在给体上空穴密度的调节。我们区分了两种主要的阴离子-供体偶联机制:一种通过供体位点上的Hartree阴离子势能的直接机制,以及一种通过修饰H键网络激活的o键极化的间接机制。两种相互作用都通过阴离子相对于给体的相对位移来调节。

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