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High-temperature superconductors
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In the years following the discovery of superconductivity in doped lanthanum copper oxide in late 1986, there has been a large multinational effort in the study of what are now called high Tc superconductors as discussed by the authors.Abstract:
In the years following the discovery of superconductivity in doped lanthanum copper oxide in late 1986 there has been a large, multinational effort in the study of what are now called high Tc superconductors. As a result of this work at least ten discrete phases of superconducting oxides have been identified. The authors felt it would be useful to have a symposium whose focus was to identify and discuss the common structural features of these oxide superconductors. These proceedings hopefully represent a state of the art view of the correlations between crystal chemistry and superconductivity in metal oxide systems.read more
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Many-Body Physics with Ultracold Gases
TL;DR: In this article, a review of recent experimental and theoretical progress concerning many-body phenomena in dilute, ultracold gases is presented, focusing on effects beyond standard weakcoupling descriptions, such as the Mott-Hubbard transition in optical lattices, strongly interacting gases in one and two dimensions, or lowest-Landau-level physics in quasi-two-dimensional gases in fast rotation.
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Invited review “sol-gel” preparation of high temperature superconducting oxides
TL;DR: A review of sol-gel preparation of high temperature superconducting oxides is presented in this paper, where different classes of gel technologies were utilized, such as hydrolysis-condensation of metal-alkoxides, gelation, and organic polymeric gel.
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Conductive dense hydrogen
Mikhail Eremets,I. A. Troyan +1 more
TL;DR: In this paper, a transformation of normal molecular hydrogen to a conductive and metallic state at room temperature is observed above 220 GPa, which is the state of the art for molecular hydrogen.
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A survey of the Van Hove scenario for high-tc superconductivity with special emphasis on pseudogaps and striped phases
TL;DR: The Van Hove singularity (VHS) provides a paradigm for the study of the role of peaks in the density of states (dos) on electronic properties, and it appears to play a major role in the physics of the high-Tc superconductors, particularly since recent photoemission studies have found that the VHS is close to the Fermi level in most of the cuprates near the composition of optimum Tc as mentioned in this paper.
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Evidence for weak link and anisotropy limitations on the transport critical current in bulk polycrystalline Y1Ba2Cu3Ox
John (Jack) W. Ekin,Aleksander I. Braginski,A. J. Panson,M. A. Janocko,D. W. Capone,Nestor J. Zaluzec,B. Flandermeyer,O. F. de Lima,Minghwei Hong,J. Kwo,Sy_Hwang Liou +10 more
TL;DR: In this paper, a current transfer model is proposed in which weak conduction along the c axis plays a role in limiting critical-current density at grain boundaries, and the effect of intrinsic conduction anisotropy is discussed.