Mesoscopic charge density wave in a magnetic flux

Montambaux, Gilles

doi:10.1007/s100510050197

Cited by 15 publications

(12 citation statements)

References 9 publications

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“…Another theory states that quasi-particle interference is generated by changing the CDW ground state [15,16,17]. Latyshev et al tried to observe the AB effect of CDWs in NbSe 3 crystals with tiny random holes pierced by heavy-ion irradiation [18].…”

Section: Introductionmentioning

confidence: 99%

Aharonov-Bohm effect in charge-density wave loops with inherent temporal current switching

Tsubota¹,

Inagaki²,

Matsuura³

et al. 2012

EPL

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The Aharonov-Bohm (AB) effect has been accepted and has promoted interdisciplinary scientific activities in modern physics. To observe the AB effect in condensed matter physics, the whole system needs to maintain phase coherence, in a tiny ring of the diameter 1 µm and at low temperatures below 1 K. We report that AB oscillations have been measured at high temperature 79 K by use of charge-density wave (CDW) loops in TaS 3 ring crystals. CDW condensate maintained macroscopic quantum coherence, which extended over the ring circumference 85 µm. The periodicity of the oscillations is h/2e in accuracy within a 10 % range. The observation of the CDW AB effect implies Frohlich superconductivity in terms of macroscopic coherence and will provide a novel quantum interference device running at room temperature.

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Section: Introductionmentioning

confidence: 99%

Aharonov-Bohm effect in charge-density wave loops with inherent temporal current switching

Tsubota¹,

Inagaki²,

Matsuura³

et al. 2012

EPL

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“…Nonetheless, the correlation length ξ was also found to control the finite-size scaling of the Peierls transition in mesoscopic rings. 13 In this article, the quantum and thermal fluctuations of the nanowire surface are calculated in a continuum model, 14 where the ionic background is treated as an incompressible, irrotational fluid. In contrast to the semi-classical theory of Ref.…”

Section: Introductionmentioning

confidence: 99%

Scaling theory of the Peierls charge density wave in metal nanowires

2007

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The Peierls instability in multi-channel metal nanowires is investigated. Hyperscaling relations are established for the finite-size-, temperature-, and wavevector-scaling of the electronic free energy. It is shown that the softening of surface modes at wavevector q = 2kF, ν leads to critical fluctuations of the wire's radius at zero temperature, where kF, ν is the Fermi wavevector of the highest occupied channel. This Peierls charge density wave emerges as the system size becomes comparable to the channel correlation length. Although the Peierls instability is weak in metal nanowires, in the sense that the correlation length is exponentially long, we predict that nanowires fabricated by current techniques can be driven into the charge-density-wave regime under strain.

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“…The observation of oscillating magnetization in large cyclic 10 Fe clusters (Ferric Wheels) [138,139] is one example of interesting possibilities existing in such structures. Flux quantization and persistent currents in Peierls insulators and charge-density-wave conductors with charge transfer mechanism by solitons and instantons is more developed theoretically [45,46,50,53] but requiring further experimental efforts. Same concerns a study of Luttinger liquids in one dimension and their crystallization to onedimensional Wigner crystal [64,65].…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Persistent currents, flux quantization, and magnetomotive forces in normal metals and superconductors (Review Article)

Kulik

2010

Low Temperature Physics

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The notion of persistent current comes back to orbital currents in normal metals, semiconductors and even insulators displaying diamagnetic behavior in weak magnetic fields, but came to focus at the discovery of current persistence and magnetic flux quantization at large fields in atomically big but macroscopically small (mesoscopic) objects. The phenomenon bears much similarity with supercurrents in superconductive metals. We will review progress in developing of our understanding of the physical and technological aspects of this phenomenon. The exact solution for currents, magnetic moments and magnetomotive forces (torques) in crossed magnetic fields are presented. Time-dependent phenomena in crossed magnetic and electric fields, and in possibility of spontaneous persistent currents and of work extraction from static and dynamic quantum states are discussed.

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Mesoscopic charge density wave in a magnetic flux

Cited by 15 publications

References 9 publications

Aharonov-Bohm effect in charge-density wave loops with inherent temporal current switching

Aharonov-Bohm effect in charge-density wave loops with inherent temporal current switching

Scaling theory of the Peierls charge density wave in metal nanowires

Persistent currents, flux quantization, and magnetomotive forces in normal metals and superconductors (Review Article)

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