# Inhomogeneous superconductivity and the “pseudogap” state of novel superconductors

@article{Kresin2006InhomogeneousSA,
title={Inhomogeneous superconductivity and the “pseudogap” state of novel superconductors},
author={Vladimir Z. Kresin and Yurii N. Ovchinikov and Stuart A. Wolf},
journal={Physics Reports},
year={2006},
volume={431},
pages={231-259}
}
• Published 2006
• Physics
• Physics Reports
Abstract Many novel superconducting compounds such as the high T c oxides are intrinsically inhomogeneous systems by virtue of the superconductivity being closely related to the carrier density which is in turn provided in most cases by doping. An inhomogeneous structure is thus created by the statistical nature of the distribution of dopants. At the same time doping also leads to pair-breaking and, consequently, to a local depression of T c . This is a major factor leading to inhomogeneity. As… Expand
81 Citations
Inhomogeneous multi-carrier superconductivity at LaXO3/SrTiO3 (X=Al or Ti) oxide interfaces
Several experiments reveal the inhomogeneous character of the superconducting state that occurs when the carrier density of the two-dimensional electron gas formed at the LaXO3/SrTiO3 (X=Al or Ti)Expand
Field-induced quantum breakdown of superconductivity in magnesium diboride
• Soon-Gil Jung, Jung Min Lee, +7 authors T. Park
• NPG Asia Materials
• 2021
The quantum breakdown of superconductivity (QBS) is the reverse, comprehensive approach to the appearance of superconductivity. A quantum phase transition from superconducting to insulating statesExpand
Superstripes and Complexity in High-Temperature Superconductors
• Physics
• 2012
While for many years the lattice, electronic and magnetic complexity of high-temperature superconductors (HTS) has been considered responsible for hindering the search of the mechanism of HTS, nowExpand
Magnetic properties of cuprate superconductors based on a phase separation theory
• Physics
• 2008
Abstract There is a great debate concerning the hole of the inhomogeneities in high critical temperature superconductors (HTS). Several experiments indicate a possible electronic phase separationExpand
Complex Lattice and Charge Inhomogeneity Favoring Quantum Coherence in High-Temperature Superconductors
The presence of two components in the electron fluid of high-temperature superconductors and the complex charge and lattice inhomogeneity have been the hot topics of the international conference ofExpand
Superconductor-insulator transition on annealed complex networks.
• G. Bianconi
• Physics, Medicine
• Physical review. E, Statistical, nonlinear, and soft matter physics
• 2012
A stylized model capturing the essential characteristics of the superconducting-insulator transition of a highly dynamical, heterogeneous granular material is proposed: the random transverse Ising model (RTIM) on annealed complex network. Expand
Disorder driven superconductor-insulator transition in inhomogenous d-wave superconductor
• Physics
• 2015
We study the effect of disorder on the superconductor-insulator transition in an inhomogeneous d-wave superconductor using the kernel polynomial method. As the Bogoliubov-de Gennes equations of theExpand
Emergence of superconductivity in the cuprates via a universal percolation process
Nonlinear conductivity is reported, resulting from superconducting precursors only, vanishing exponentially above Tc both with temperature and with magnetic field, and exhibits temperature-scaling characterized by a universal scale Ξ0. Expand
The flux dynamics behavior of the two competing high temperature superconducting phases in underdoped LaCuO4.06.
• Materials Science, Physics
• Physical chemistry chemical physics : PCCP
• 2016
Results point out that the low critical temperature phase is well described by a bulk-like flux pinning with a 2D geometry while the phase with higher critical temperature shows a 'barrier pinning' mechanism providing direct evidence of two different superconducting vortex dynamics in different complex geometrical spaces. Expand
Superconductivity in Quantum Complex Matter: the Superstripes Landscape
While in XX century the theory of superconductivity has focused on a homogeneous metal with a rigid lattice which can be reduced to a single effective conduction band in the dirty limit. Today in theExpand

#### References

SHOWING 1-10 OF 99 REFERENCES
The crystal field in rare earth based high-temperature superconductors
• Materials Science
• 1997
Neutron spectroscopy is a powerful tool to determine unambiguously the crystal-field (CF) potential in rare-earth (R) based high-Tc superconducting materials. This technique provides detailedExpand
Importance of phase fluctuations in superconductors with small superfluid density
• Chemistry
• Nature
• 1995
THE superconducting state of a metal is characterized by a complex order parameter with an amplitude and a phase. In the BCS-Eliashberg mean-field theory1, which is a very good approximation forExpand
The doping dependence of T* – what is the real high-Tc phase diagram?
• Materials Science, Physics
• 2000
Abstract Underdoped high- T c superconductors are frequently characterised by a temperature, T * , below which the normal-state pseudogap opens. Two different “phase diagrams” based on the doping ( pExpand
Diamagnetic activity above Tc as a precursor to superconductivity in La2-xSrxCuO4 thin films
• Chemistry, Medicine
• Nature
• 2001
Superconductors show zero resistance to electric current, and expel magnetic flux (the Meissner effect) below the transition temperature (Tc). In conventional superconductors, the ‘Cooper pairs’ ofExpand
Intrinsic Inhomogeneities in superconductors and the pseudogap phenomenon
• Physics
• 2001
High-${T}_{c}$ oxides are intrinsically inhomogeneous materials. The density of states is evaluated for such an inhomogeneous system, and it displays a gap structure above ${T}_{c}^{\mathrm{res}}$Expand
On the possibility of new high Tc superconductors by producing metal heterostructures as in the cuprate perovskites
Abstract Here we propose a possible way to produce superconductors with high critical temperature Tc by confinement of a Fermi liquid in a superlattice of quantum stripes (wells, wires or dots). TheExpand
Vortex-like excitations and the onset of superconducting phase fluctuation in underdoped La2-xSrxCuO4
• Z. Xu, Y. Wang
• Chemistry, Medicine
• Nature
• 2000
Evidence for vortices (or vortex-like excitations) in La2-xSrxCuO4 at temperatures significantly above the critical temperature is reported. Expand
Spectroscopic evidence for a pseudogap in the normal state of underdoped high-Tc superconductors
IT is well known that BCS mean-field theory is remarkably successful in describing conventional superconductors. A central concept of BCS theory is the energy gap in the electronic excitationExpand
New Magnetic Superconductors: A Toy Box for Solid‐State Physicists
• Physics
• 1998
Over the past decade, discussion of the interaction between superconductivity and magnetism has been overshadowed by the omnipresence of the oxide‐based, high‐temperature superconductors. ButExpand
Impurity-induced states in conventional and unconventional superconductors
• Physics
• 2004
We review recent developments in our understanding of how impurities influence the electronic states in the bulk of superconductors. Our focus is on the quasi-localized states in the vicinity ofExpand