D charge-density-wave versus superconducting phase fluctuations in underdoped high-Tc superconductors

2005 ◽  
Vol 242 (2) ◽  
pp. 356-362 ◽  
Author(s):  
R. Zeyher ◽  
A. Greco
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Superconducting Phase ◽  
High Tc Superconductors ◽  
Wave Versus ◽  
High Tc ◽  
Phase Fluctuations

scholarly journals Charge density wave and superconducting phase in monolayer InSe

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
Mohammad Alidoosti ◽  
Davoud Nasr Esfahani ◽  
Reza Asgari
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Superconducting Phase

scholarly journals Inhomogeneity of charge-density-wave order and quenched disorder in a high-Tc superconductor

Nature ◽  
2015 ◽  
Vol 525 (7569) ◽  
pp. 359-362 ◽  
Author(s):  
G. Campi ◽  
A. Bianconi ◽  
N. Poccia ◽  
G. Bianconi ◽  
L. Barba ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Quenched Disorder ◽  
High Tc ◽  
High Tc Superconductor

Charge density wave formation in the low-temperature-tetragonal phase of cuprates

2002 ◽  
Vol 12 (9) ◽  
pp. 251-251
Author(s):  
C. Morais Smith ◽  
N. Hasselmann ◽  
A. H. Castro Neto
Keyword(s):  
Low Temperature ◽  
Charge Density ◽  
Tetragonal Phase ◽  
Charge Density Wave ◽  
Density Wave ◽  
Charge Order ◽  
High Tc ◽  
A Charge ◽  
High Tc Cuprates ◽  
Shed Light

We calculate the influence of transverse fluctuations on the longitudinal dynamics in the striped phase of cuprates by using the bosonization technique. We find that a charge density wave instability can arise if the stripe is quarter filled and the underlying lattice potential has a zig-zag symmetry. Our results shed light on the as yet not understood connection between the formation of a low temperature tetragonal phase and the subsequent appearance of charge order in high-Tc cuprates.

scholarly journals THE NATURE OF SUPERCONDUCTING FLUCTUATIONS AND NEW ASPECTS IN HIGH Tc SUPERCONDUCTORS

2020 ◽  
Author(s):  
Alessandro Lascialfari ◽  
Attilio Rigamonti
Keyword(s):  
Magnetic Field ◽  
Order Parameter ◽  
Superconducting Phase ◽  
Fundamental Parameter ◽  
Magnetization Curves ◽  
High Tc Superconductors ◽  
High Tc ◽  
Phase Fluctuations ◽  
Superconducting Fluctuations ◽  
Critical Temperature Tc

After a brief introduction to thermodynamical superconducting fluctuations, some experimental results in different systems are presented. Superconducting fluctuations were predicted and revealed in nanoparticles of conventional superconductors since late 60s. However, just in the last two decades phenomena related to an anomalous diamagnetism have been discovered in high-Tc underdoped compounds, mainly by collecting the isothermal magnetization curves above the critical temperature Tc. These experimental data can be interpreted in terms of fluctuations of the phase of the order parameter and a related theoretical model can explain the results in cuprates, pnictides and Fe-based materials. Such results, here presented together with preliminary data on a Ca-based high-Tc system, allow one to extract a fundamental parameter, the upturn magnetic field above which the diamagnetic magnetization initiates to decrease on increasing the field. Its temperature dependence distinguishes among diamagnetic effects related to superconducting phase fluctuations and to analogous effects due to chemical inhomogenities.

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