skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Condensation energy and spectral functions in high-temperature superconductors

Abstract

If high-temperature cuprate superconductivity is due to electronic correlations, then the energy difference between the normal and superconducting states can be expressed in terms of the occupied part of the single-particle spectral function. The latter can, in principle, be determined from angle-resolved photoemission (ARPES) data. As a consequence, the energy gain driving the development of the superconducting state is intimately related to the dramatic changes in the photoemission line shape when going below T{sub c}. These points are illustrated in the context of the ''mode'' model used to fit ARPES data in the normal and superconducting states, where the question of kinetic-energy versus potential-energy-driven superconductivity is explored in detail. We use our findings to comment on the relation of ARPES data to the condensation energy and to various other experimental data. In particular, our results suggest that the nature of the superconducting transition is strongly related to how anomalous (non-Fermi-liquid-like) the normal-state spectral function is and, as such, is dependent upon the doping level. (c) 2000 The American Physical Society.

Authors:
 [1];  [2];  [1];  [1];  [3]
  1. Materials Sciences Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  2. Tata Institute of Fundamental Research, 400005 Mumbai, (India)
  3. (United States)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
20216579
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 61; Journal Issue: 21; Other Information: PBD: 1 Jun 2000; Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; HIGH-TC SUPERCONDUCTORS; PHASE TRANSFORMATIONS; PHOTOEMISSION; POTENTIAL ENERGY; KINETIC ENERGY; TRANSITION TEMPERATURE; CRITICAL TEMPERATURE; CORRELATION FUNCTIONS; FERMI LEVEL; LINE WIDTHS; EXPERIMENTAL DATA; THEORETICAL DATA

Citation Formats

Norman, M. R., Randeria, M., Janko, B., Campuzano, J. C., and Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607. Condensation energy and spectral functions in high-temperature superconductors. United States: N. p., 2000. Web. doi:10.1103/PhysRevB.61.14742.
Norman, M. R., Randeria, M., Janko, B., Campuzano, J. C., & Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607. Condensation energy and spectral functions in high-temperature superconductors. United States. doi:10.1103/PhysRevB.61.14742.
Norman, M. R., Randeria, M., Janko, B., Campuzano, J. C., and Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607. Thu . "Condensation energy and spectral functions in high-temperature superconductors". United States. doi:10.1103/PhysRevB.61.14742.
@article{osti_20216579,
title = {Condensation energy and spectral functions in high-temperature superconductors},
author = {Norman, M. R. and Randeria, M. and Janko, B. and Campuzano, J. C. and Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607},
abstractNote = {If high-temperature cuprate superconductivity is due to electronic correlations, then the energy difference between the normal and superconducting states can be expressed in terms of the occupied part of the single-particle spectral function. The latter can, in principle, be determined from angle-resolved photoemission (ARPES) data. As a consequence, the energy gain driving the development of the superconducting state is intimately related to the dramatic changes in the photoemission line shape when going below T{sub c}. These points are illustrated in the context of the ''mode'' model used to fit ARPES data in the normal and superconducting states, where the question of kinetic-energy versus potential-energy-driven superconductivity is explored in detail. We use our findings to comment on the relation of ARPES data to the condensation energy and to various other experimental data. In particular, our results suggest that the nature of the superconducting transition is strongly related to how anomalous (non-Fermi-liquid-like) the normal-state spectral function is and, as such, is dependent upon the doping level. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevB.61.14742},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 21,
volume = 61,
place = {United States},
year = {2000},
month = {6}
}