Journal ArticleDOI
Josephson vortex state across the phase diagram ofLa2−xSrxCuO4: A magneto-optics study
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In this article, a detailed doping dependent study of the Josephson vortex state in La2−xSrxCuO4 using infrared spectroscopy was performed and a magnetic field as high as 17 tesla was applied along the CuO2 planes.Abstract:
We present a detailed doping dependent study of the Josephson vortex state in La2−xSrxCuO4 using infrared spectroscopy. A magnetic field as high as 17 tesla, applied along the CuO2 planes, is found to suppress the Josephson plasmon in all measured samples. We find the strongest suppression in samples with dopings close to x=1/8 and attribute this effect to the spontaneous formation of in-plane charge inhomogenities at this doping level. Several theoretical models of the Josephson vortex state are applied to explain the observed effects.read more
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Electrodynamics of correlated electron materials
TL;DR: In this article, the authors review studies of the electromagnetic response of various classes of correlated electron materials including transition metal oxides, organic and molecular conductors, intermetallic compounds with $d$- and $f$-electrons as well as magnetic semiconductors.
Journal ArticleDOI
Electrodynamics of high- T c superconductors
Dmitri Basov,Thomas Timusk +1 more
TL;DR: In this article, a review of the electromagnetic response of high-Tc superconductors using terahertz, infrared, and optical spectroscopies is presented, with an emphasis on conceptual issues, including evolution of the electronic spectral weight in doped Mott-Hubbard insulators, the d-wave superconducting energy gap and the normal-state pseudogap, anisotropic superfluid response, electronic phase segregation, emergence of coherent electronic state as a function of both temperature and doping, the vortex state, and the energetics of the super
Journal ArticleDOI
Nonlinear light–matter interaction at terahertz frequencies
TL;DR: In this article, a review provides an overview and illustrative examples of how intense terahertz transients can be used to resonantly control matter, with particular focus on strongly correlated electron systems and high temperature superconductors.
BookDOI
High-Temperature Cuprate Superconductors
TL;DR: Uykur et al. as discussed by the authors studied the double layer YBa2Cu3Oy system, where the additional structures, namely the CuO-chains in this system, give some advantage in their measurements by increasing the conductivity along the c-axis.
Journal ArticleDOI
Nonlinear light-matter interaction at terahertz frequencies
TL;DR: In this paper, the authors provide an overview and illustrative examples of how intense THz transients can be used to resonantly control matter, with particular focus on strongly correlated electron systems and high-temperature superconductors.
References
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Journal ArticleDOI
Vortices in high-temperature superconductors
TL;DR: The Ginzburg number as discussed by the authors was introduced to account for thermal and quantum fluctuations and quenched disorder in high-temperature superconductors, leading to interesting effects such as melting of the vortex lattice, the creation of new vortex-liquid phases, and the appearance of macroscopic quantum phenomena.
Journal ArticleDOI
Upper Limit for the Critical Field in Hard Superconductors
TL;DR: In this paper, an examination of some recent reports dealing with the extremely high critical fields in certain hard superconductors was presented, and it was concluded that the critical fields for these BETA -wolfran compounds are so high that they may be effectively limited at low temperatures by the normal-state paramagnetism.
Journal ArticleDOI
How to detect fluctuating stripes in the high-temperature superconductors
Steven A. Kivelson,Ian P. Bindloss,Eduardo Fradkin,Vadim Oganesyan,John M. Tranquada,Aharon Kapitulnik,C. Howald +6 more
TL;DR: In this paper, the authors compare and contrast the advantages of two limiting perspectives on the high-temperature superconductor: weak coupling, in which correlation effects are treated as a perturbation on an underlying metallic (although renormalized) Fermi-liquid state, and strong coupling, where the magnetism is associated with well defined localized spins, and stripes are viewed as a form of micro phase separation.
Journal ArticleDOI
A note on the maximum critical field of high‐field superconductors
TL;DR: In this paper, the maximum field at which a superconductor maintains superconductivity is recognized as a parameter of the super-conductor, and an attempt is made to find a relation between maximum field and critical temperature.
Journal ArticleDOI
Unified theory of effects of vortex pinning and flux creep upon the rf surface impedance of type-II superconductors.
Mark W. Coffey,John R. Clem +1 more
TL;DR: This work presents a new theoretical approach that permits the rf surface impedance of type-II superconductors to be calculated over a wide range of angular frequencies, magnetic inductions, and temperatures, based on a self-consistent treatment of vortex dynamics.