Journal ArticleDOI
Superconductivity-Induced Transfer of In-Plane Spectral Weight in Bi2Sr2CaCu2O8+δ
TLDR
A blue shift of the ab-plane plasma frequency when the material became superconducting, indicating that the spectral weight was transferred to the infrared range, is observed, in agreement with models in which superconductivity is accompanied by an increased charge carrier spectral weight.Abstract:
Optical data are reported on a spectral weight transfer over a broad frequency range of Bi2Sr2CaCu2O8+δ, when this material became superconducting. Using spectroscopic ellipsometry, we observed the removal of a small amount of spectral weight in a broad frequency band from 104 cm−1 to at least 2 × 104 cm−1, due to the onset of superconductivity. We observed a blue shift of the ab-plane plasma frequency when the material became superconducting, indicating that the spectral weight was transferred to the infrared range. Our observations are in agreement with models in which superconductivity is accompanied by an increased charge carrier spectral weight. The measured spectral weight transfer is large enough to account for the condensation energy in these compounds.read more
Citations
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Doping a Mott insulator: Physics of high-temperature superconductivity
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Angle-resolved photoemission studies of the cuprate superconductors
TL;DR: A review of the most recent ARPES results on the cuprate superconductors and their insulating parent and sister compounds is presented in this article, with the purpose of providing an updated summary of the extensive literature.
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Doping a Mott Insulator: Physics of High Temperature Superconductivity
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Quantum cluster theories
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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.
References
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Journal ArticleDOI
Band-Structure Trend in Hole-Doped Cuprates and Correlation with T c max
TL;DR: By calculation and analysis of the bare conduction bands in a large number of hole-doped high-temperature superconductors, the range of the intralayer hopping is identified as the essential, material-dependent parameter.
Journal ArticleDOI
Interlayer Tunneling and Gap Anisotropy in High-Temperature Superconductors
TL;DR: A quantitative analysis of a recent model of high-temperature superconductors based on an interlayer tunneling mechanism can account well for the observed magnitudes of the high transition temperatures in these materials and implies a gap that does not change sign, can be substantially anisotropic, and has the same symmetry as the crystal.
Journal ArticleDOI
Evidence on the pseudogap and condensate from the electronic specific heat
TL;DR: In this paper, the pseudogap energy decreases as Eg(p)∼J(1−p/pcrit) for p pcrit, where pcrit∼0.19 is close to optimal Tc.
Journal ArticleDOI
Signature of Superfluid Density in the Single-Particle Excitation Spectrum of Bi2Sr2CaCu2O8+δ
Donglai Feng,Donghui Lu,Kang Shen,Changyoung Kim,Hiroshi Eisaki,Andrea Damascelli,Ryozo Yoshizaki,Jun-ichi Shimoyama,Koji Kishio,Genda Gu,Seongshik Oh,A. E. Andrus,J. O'Donnell,James N. Eckstein,Zhi-Xun Shen +14 more
TL;DR: In this paper, the doping and temperature dependence of photoemission spectra near the Brillouin zone boundary of Bi2Sr2CaCu2O8+δ are investigated.
Journal ArticleDOI
Sum Rules and Interlayer Conductivity of High-Tc Cuprates
Dimitri Basov,S. I. Woods,A. S. Katz,E. J. Singley,Robert C. Dynes,M. Xu,D. G. Hinks,Christopher C. Homes,M. Strongin +8 more
TL;DR: Analysis of the interlayer infrared conductivity of cuprate high-transition temperature superconductors reveals an anomalously large energy scale extending up to midinfrared frequencies that can be attributed to formation of the superconducting condensate.