Disorder effects on the charge-density waves structure in V- and W-doped blue bronzes: Friedel oscillations and charge-density wave pinning

2006 ◽  
Vol 74 (17) ◽  
Author(s):  
S. Ravy ◽  
S. Rouzière ◽  
J.-P. Pouget ◽  
S. Brazovskii ◽  
J. Marcus ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Charge Density Waves ◽  
Density Waves ◽  
Disorder Effects ◽  
Friedel Oscillations

Epitaxial Growth and Charge Density Wave of TaSe2

1991 ◽  
Vol 230 ◽  
Author(s):  
Toshihiro Shimada ◽  
Fumio S. Ohuchi ◽  
Bruce A. Parkinson
Keyword(s):  
Transition Metal ◽  
Charge Density ◽  
Epitaxial Growth ◽  
Ultrathin Films ◽  
Charge Density Wave ◽  
Density Wave ◽  
Transition Metal Dichalcogenides ◽  
Charge Density Waves ◽  
Density Waves ◽  
Metal Dichalcogenides

AbstractWe report an epitaxial growth of TaSe2, a family of transition metal dichalcogenides that exhibit Charge Density Waves (CDW). The films that have been characterized with RHEED, LEED, XPS and STM showed two different phases. Occurrence of CDW in the ultrathin films has been detected by XPS and LEED.

A model for charge-density waves in TaTe4 and related materials

1985 ◽  
Vol 63 (1) ◽  
pp. 46-49 ◽  
Author(s):  
M. B. Walker
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Three Dimensional ◽  
Charge Density Waves ◽  
Density Waves ◽  
One Dimensional ◽  
Weakly Interacting ◽  
Proposed Model

The proposed model assumes that charge-density waves are formed on equivalent, weakly interacting, one-dimensional columns. Various three-dimensional structures differing in the relative phasing of the charge-density waves on different columns are found, and the charge-density wave structures of TaTe4 and NbTe4 are interpreted in terms of these results.

Friedel oscillations and charge-density waves pinning in quasi-one-dimensional conductors

2001 ◽  
Vol 120 (1-3) ◽  
pp. 1075-1076
Author(s):  
S. Ravy ◽  
S. Rouzière ◽  
J.-P. Pouget ◽  
S. Brazovskii
Keyword(s):  
Charge Density ◽  
Charge Density Waves ◽  
Density Waves ◽  
One Dimensional ◽  
Friedel Oscillations

scholarly journals Charge-parity symmetry observed through Friedel oscillations in chiral charge-density waves

2011 ◽  
Vol 84 (24) ◽  
Author(s):  
J. Ishioka ◽  
T. Fujii ◽  
K. Katono ◽  
K. Ichimura ◽  
T. Kurosawa ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Waves ◽  
Density Waves ◽  
Friedel Oscillations ◽  
Parity Symmetry ◽  
Charge Parity

scholarly journals Negative differential resistance observed on the charge density wave of a transition metal dichalcogenide

Nanoscale ◽  
2019 ◽  
Vol 11 (46) ◽  
pp. 22351-22358 ◽  
Author(s):  
Adina Luican-Mayer ◽  
Yuan Zhang ◽  
Andrew DiLullo ◽  
Yang Li ◽  
Brandon Fisher ◽  
...  
Keyword(s):  
Transition Metal ◽  
Charge Density ◽  
Voltage Pulse ◽  
Negative Differential Resistance ◽  
Charge Density Wave ◽  
Density Wave ◽  
Differential Resistance ◽  
Charge Density Waves ◽  
Transition Metal Dichalcogenide ◽  
Physical Phenomena

Charge density waves and negative differential resistance are seemingly unconnected physical phenomena but they coexist after a voltage pulse manipulation on TaS2 surface with an STM tip.

scholarly journals High-temperature charge density wave correlations in La1.875Ba0.125CuO4 without spin–charge locking

2017 ◽  
Vol 114 (47) ◽  
pp. 12430-12435 ◽  
Author(s):  
H. Miao ◽  
J. Lorenzana ◽  
G. Seibold ◽  
Y. Y. Peng ◽  
A. Amorese ◽  
...  
Keyword(s):  
High Temperature ◽  
Charge Density ◽  
Density Wave ◽  
Charge Density Waves ◽  
Charge Ordering ◽  
Density Waves ◽  
Spin Correlations ◽  
Spin Order ◽  
Charge Correlations ◽  
Ordering Transition

Although all superconducting cuprates display charge-ordering tendencies, their low-temperature properties are distinct, impeding efforts to understand the phenomena within a single conceptual framework. While some systems exhibit stripes of charge and spin, with a locked periodicity, others host charge density waves (CDWs) without any obviously related spin order. Here we use resonant inelastic X-ray scattering to follow the evolution of charge correlations in the canonical stripe-ordered cuprate La1.875Ba0.125CuO4 across its ordering transition. We find that high-temperature charge correlations are unlocked from the wavevector of the spin correlations, signaling analogies to CDW phases in various other cuprates. This indicates that stripe order at low temperatures is stabilized by the coupling of otherwise independent charge and spin density waves, with important implications for the relation between charge and spin correlations in the cuprates.

scholarly journals NOVEL PHENOMENA IN CHARGED BOSE LIQUID

1998 ◽  
Vol 13 (12) ◽  
pp. 987-994 ◽  
Author(s):  
KIMYEONG LEE ◽  
OLEG TCHERNYSHYOV
Keyword(s):  
Charge Density ◽  
Density Wave ◽  
Finite Size ◽  
Charge Density Waves ◽  
Two Dimensions ◽  
Coulomb Interactions ◽  
Density Waves ◽  
Boson Exchange ◽  
Bose Liquid ◽  
Uniform Background

We investigate charged Bose liquid immersed in uniform background charge at zero temperature. Novel phenomena, such as oscillatory shielding of external localized electric charge, rotons and charge density waves (charge stripes in two dimensions), occur in any dimensions. Oscillatory shielding is caused by mixing between scalar boson exchange and Coulomb interactions, which mediate opposite forces. On the other hand, rotons and charge density waves are due to attractive local self-interaction of bosons. Rotons can be regarded as a finite size charge density wave packet without any back flow. We also comment on charge stripes observed recently in cuprates and nickelates.

scholarly journals Translation-Invariant Bipolarons and Charge Density Waves in High-Temperature Superconductors

2021 ◽  
Vol 9 ◽  
Author(s):  
Victor D. Lakhno
Keyword(s):  
Charge Density ◽  
High Temperature Superconductors ◽  
Bose Condensate ◽  
Density Wave ◽  
Charge Density Waves ◽  
Superconducting Transition ◽  
Density Waves ◽  
Translation Invariant ◽  
Pseudogap Phase ◽  
Pair Density

A correlation is established between the theories of superconductivity based on the concept of charge density waves (CDWs) and the translation invariant (TI) bipolaron theory. It is shown that CDWs are originated from TI-bipolaron states in the pseudogap phase due to the Kohn anomaly and form a pair density wave (PDW) for wave vectors corresponding to nesting. Emerging in the pseudogap phase, CDWs coexist with superconductivity at temperatures below those of superconducting transition, while their wave amplitudes decrease as a Bose condensate is formed from TI bipolarons, vanishing at zero temperature.

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