Temperature-Dependent Ellipsometry Measurements of Partial Coulomb Energy in Superconducting Cuprates

J. Levallois, M. K. Tran, D. Pouliot, C. N. Presura, L. H. Greene, J. N. Eckstein, J. Uccelli, E. Giannini, G. D. Gu, A. J. Leggett, and D. van der Marel Department of Quantum Matter Physics, University of Geneva, Quai Ernest-Ansermet 24, CH-1211 Genève 4, Switzerland Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801, USA Philips Research, Professor Holstlaan 4, 5656 AE Eindhoven, The Netherlands Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973 5000, USA Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801, USA and Institute of Quantum Computing, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada (Received 28 November 2015; revised manuscript received 24 June 2016; published 24 August 2016)