Fermi Surfaces, Fermi Liquids, and High-Temperature Superconductors

• DOI: 10.1126/science.255.5040.46
• Publication Date: 2006-10-05T23:03:06Z
• Authors: W. E. Pickett; D. J. Singh; H. Krakauer; R. E. Cohen
• Keywords: 0103 physical sciences; 01 natural sciences

Recent experimental results are beginning to limit seriously the theories that can be considered explain high-temperature superconductivity. The unmistakable observations of a Fermi surface, by several groups and methods, make it focus realistic metallic phases. Data from angle-resolved photoemission, positron annihilaton, de Haas-van Alphen experiments in agreement with band theory predictions, implying phases cannot pictured as doped insulators. character low energy excitations ("quasiparticles"), which interact strongly atomic motions, magnetic fluctuations, possibly charge must sorted out before superconducting pairing mechanism given microscopic basis.