Book ChapterDOI
Light scattering in high-Tc superconductors
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This article is published in Topics in Applied Physics.The article was published on 1991-01-01. It has received 53 citations till now. The article focuses on the topics: Light scattering & High-temperature superconductivity.read more
Citations
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Book ChapterDOI
Coherent phonons in condensed media
TL;DR: In this article, the authors present an overview of recent achievements in the field of condensedmatter physics, including the detection of coherent phonons and phonon-polaritons with femtosecond time resolution.
Journal ArticleDOI
Raman spectroscopy of metals, high-temperature superconductors and related materials under high pressure
TL;DR: In this article, an overview of recent Raman scattering measurements in metals under conditions of high static pressure in the diamond anvil cell is presented, and the practical improvements of the traditional technique that have made these measurements possible.
Journal ArticleDOI
Supraleitung in seltenerdmetall-carbidhalogeniden des typs se2x2c2
TL;DR: The superconductivity of the carbide halides Y2X2C2 is attributed to a pairwise attraction of conduction electrons by C2-π* states at the Fermi level.
Journal ArticleDOI
Bosonic Spectral Function and The Electron-Phonon Interaction in HTSC Cuprates
TL;DR: In this paper, the authors discussed the evidence for strong electron-phonon interaction (EPI) with the coupling constant between 1-3 in cuprates near optimal doping and clarified how these results are in favor of the Eliashberg-like theory for HTSC cuprates.
Journal ArticleDOI
Chemical principles of preparation of metal-oxide superconductors
Yu. D. Tret'yakov,E.A. Goodilin +1 more
TL;DR: In this paper, a review deals with chemical aspects of the problem of preparation of a novel class of advanced materials, viz., high-temperature superconducting cuprates of complex chemical composition and structure.
References
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Journal ArticleDOI
Possible high Tc superconductivity in the Ba-La-Cu-O system
TL;DR: In this paper, Ba−La−Cu−O system, with the composition BaxLa5−xCu5O5(3−y) have been prepared in polycrystalline form, and samples with x=1 and 0.75,y>0, annealed below 900°C under reducing conditions, consist of three phases, one of them a perovskite-like mixed-valent copper compound.
Journal ArticleDOI
Theory of Superconductivity
TL;DR: In this article, a theory of superconductivity is presented, based on the fact that the interaction between electrons resulting from virtual exchange of phonons is attractive when the energy difference between the electrons states involved is less than the phonon energy, and it is favorable to form a superconducting phase when this attractive interaction dominates the repulsive screened Coulomb interaction.
Journal ArticleDOI
Effects of Configuration Interaction on Intensities and Phase Shifts
TL;DR: In this paper, a theoretical analysis of the shape of the 2s2p^{1}P resonance of He observed in the inelastic scattering of electrons is presented. But the analysis is restricted to the case of one discrete level with two or more continua and of a set of discrete levels with one continuum.
Journal ArticleDOI
Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressure
Maw-Kuen Wu,J. R. Ashburn,C. J. Torng,Pei-Herng Hor,R. L. Meng,Li Gao,Z. J. Huang,Yongmei Wang,Ching-Wu Chu +8 more
TL;DR: A stable and reproducible superconductivity transition between 80 and 93 K has been unambiguously observed both resistively and magnetically in a new Y-Ba-Cu-O compound system at ambient pressure.
Journal ArticleDOI
The resonating valence bond state in La2CuO4 and superconductivity
TL;DR: The oxide superconductors, particularly those recently discovered that are based on La2CuO4, have a set of peculiarities that suggest a common, unique mechanism: they tend in every case to occur near a metal-insulator transition into an odd-electron insulator with peculiar magnetic properties.