Unconventional energetics of the pseudogap state and superconducting state in high-Tc cuprates

Unconventional energetics of the pseudogap state and superconducting state in high-Tc cuprates D. N. Basov, C. C. Homes, E. J. Singley, M. Strongin, T. Timusk, G. Blumberg, and D. van der Marel Department of Physics, University of California, San Diego, La Jolla, California 92093-0319 Department of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000 Department of Physics, McMaster University, Hamilton, Ontario, Canada L8S 4M1 Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974 Laboratory of Solid State Physics, University of Groningen, 9747 AG Groningen, The Netherlands ~Received 14 March 2000; revised manuscript received 1 August 2000; published 12 March 2001!