Persistent currents in a Peierls insulator

Persistent currents in a Peierls insulator
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Peierls 绝缘体中的持续电流

DOI:
10.1209/epl/i1996-00276-4
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发表时间:
1996
期刊:
EPL
影响因子:
1.8
通讯作者:
G. Bauer
G. Bauer
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
M. Visscher;B. Rejaei;G. Bauer

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从理论上研究了具有不相称电荷密度波(CDW)基态的介观环。研究发现磁通量对CDW阶次参数的幅值有显着影响。自洽计算预测序参数作为通量的函数的周期性调制。在足够小的环中,磁场甚至可以破坏 CDW 基态。磁通引起的相变会影响持续电流,并且应该可以在磁响应中观察到。
Mesoscopic rings with an incommensurate charge density wave (CDW) ground state are investigated theoretically. It is found that the magnetic flux has a pronounced effect on the amplitude of the CDW order parameter. Self-consistent calculations predict a periodic modulation of the order parameter as a function of the flux. In sufficiently small rings the magnetic field can even destroy the CDW ground state. The flux-induced phase transition affects the persistent current and should be observable in the magnetic response.
自旋涨落材料的电动力学
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
V. Stankevich;S. Kimura;他8名;T. Ito;S. Kimura
通讯作者: S. Kimura