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Ordering Phenomena in Cuprates
2005Results of light-scattering experiments in Bi2Sr2CaCu2O8+δ (Bi-2212), La2–xSrxCuO4 (LSCO), and YBa2Cu3O6+x (Y-123) single crystals are presented. The emphasis is placed on the low doping range where the evolution of the metallic state from the antiferromagnetic one is studied.
Hackl, Rudi +6 more
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Thermopower of the superconducting cuprates
Physical Review B, 1995The normal-state thermoelectric power of the high-{ital T}{sub {ital c}} superconducting cuprates shows a systematic but unusual dependence on temperature and on the concentration of holes in the CuO{sub 2} planes. In this paper it is shown that the observed pattern is predicted within a conventional Fermi-liquid picture and follows from the ...
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Rehybridization and pairing in the cuprates
Physical Review B, 1996The correlation effects associated with the formation of the local Zhang-Rice singlet are shown to lead to a bound pair of holes in a simple three-band cluster model of the cuprates. The symmetry of the pair function is {ital d}{sub {ital x}{sup 2}{minus}{ital y}{sup 2}}.
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Plasmons in cuprate superconductors
Physical Review B, 1990The customary way of determining the complex dielectric constant from the measured reflectance spectra suffers from large uncertainties because of the extrapolations required for the Kramers-Kronig transformation. To avoid these, a method is introduced in which reflectance and ellipsometric data on single crystals and epitaxial films are combined ...
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Structure and cryogenic magnetic properties in Ho2BaCuO5 cuprate
Ceramics International, 2018Yikun Zhang +2 more
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Optical properties of cuprates
Physica C: Superconductivity, 1994We present inhomogeneous Hartree-Fock plus RPA calculations showing the evolution of optical absorption bands with doping. The observed midinfrared (MIR) band and other features are explained and related to the transfer of spectral weight observed in other spectroscopies.
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ChemInform Abstract: The Silyl‐Cupration and Stannyl‐Cupration of Allenes.
ChemInform, 1989AbstractThe stoichiometric silyl‐cupration of the allene (I), followed directly by treating the intermediate cuprate with an electrophile (e.g.
I, FLEMING +4 more
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Stripes and Superconductivity in Cuprates–Is there a Connection?
ChemPhysChem, 2003Charge stripes can be traced back to the 1990s or even earlier." Stripes are a special case of the general phenomenon of electronic phase separation in strongly correlated transition metal oxide systems wherein regions with a high concentration of mobile carriers are separated from those with a low concentration due to Coulomb interactions. The carrier-
N, Kumar, C N R, Rao
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2009
An insulator with a magnetic moment at each lattice site (i.e. a magnetic insulator) is known as Mott insulator. The unusuality of a Mott insulator is that strong correlations suppress the charge fluctuations, which are required for a finite conductivity.
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An insulator with a magnetic moment at each lattice site (i.e. a magnetic insulator) is known as Mott insulator. The unusuality of a Mott insulator is that strong correlations suppress the charge fluctuations, which are required for a finite conductivity.
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Nature, 1999
Superconductivity and magnetism are usually considered mutually exclusive, although they can coexist in hybrid compounds containing two different sets of atoms. Under certain conditions, in a high-temperature superconductor, magnetism can now coexist with superconductivity even though they both arise from the same copper atoms.
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Superconductivity and magnetism are usually considered mutually exclusive, although they can coexist in hybrid compounds containing two different sets of atoms. Under certain conditions, in a high-temperature superconductor, magnetism can now coexist with superconductivity even though they both arise from the same copper atoms.
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