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

Title: Electronic phase separation and high temperature superconductors

Abstract

The authors review the extensive evidence from model calculations that neutral holes in an antiferromagnet separate into hole-rich and hole-poor phases. All known solvable limits of models of holes in a Heisenberg antiferromagnet exhibit this behavior. The authors show that when the phase separation is frustrated by the introduction of long-range Coulomb interactions, the typical consequence is either a modulated (charge density wave) state or a superconducting phase. The authors then review some of the strong experimental evidence supporting an electronically-driven phase separation of the holes in the cuprate superconductors and the related Ni oxides. Finally, the authors argue that frustrated phase separation in these materials can account for many of the anomalous normal state properties of the high temperature superconductors and provide the mechanism of superconductivity. In particular, it is shown that the T-linear resistivity of the normal state is a paraconductivity associated with a novel composite pairing, although the ordered superconducting state is more conventional.

Authors:
 [1];  [2]
  1. Univ. of California, Los Angeles, CA (United States). Dept. of Physics
  2. Brookhaven National Lab., Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab., Upton, NY (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10119863
Report Number(s):
BNL-61338; CONF-931247-10
ON: DE95007302; TRN: 95:002146
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Conference
Resource Relation:
Conference: Strongly correlated electronic materials,Los Alamos, NM (United States),15-18 Dec 1993; Other Information: PBD: 11 Jan 1994
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; HIGH-TC SUPERCONDUCTORS; ELECTRONIC STRUCTURE; MATHEMATICAL MODELS; ANTIFERROMAGNETIC MATERIALS; CUPRATES; NICKEL OXIDES; ELECTRIC CONDUCTIVITY; HOLES; 665410; SUPERCONDUCTIVITY

Citation Formats

Kivelson, S A, and Emery, V J. Electronic phase separation and high temperature superconductors. United States: N. p., 1994. Web.
Kivelson, S A, & Emery, V J. Electronic phase separation and high temperature superconductors. United States.
Kivelson, S A, and Emery, V J. 1994. "Electronic phase separation and high temperature superconductors". United States. https://www.osti.gov/servlets/purl/10119863.
@article{osti_10119863,
title = {Electronic phase separation and high temperature superconductors},
author = {Kivelson, S A and Emery, V J},
abstractNote = {The authors review the extensive evidence from model calculations that neutral holes in an antiferromagnet separate into hole-rich and hole-poor phases. All known solvable limits of models of holes in a Heisenberg antiferromagnet exhibit this behavior. The authors show that when the phase separation is frustrated by the introduction of long-range Coulomb interactions, the typical consequence is either a modulated (charge density wave) state or a superconducting phase. The authors then review some of the strong experimental evidence supporting an electronically-driven phase separation of the holes in the cuprate superconductors and the related Ni oxides. Finally, the authors argue that frustrated phase separation in these materials can account for many of the anomalous normal state properties of the high temperature superconductors and provide the mechanism of superconductivity. In particular, it is shown that the T-linear resistivity of the normal state is a paraconductivity associated with a novel composite pairing, although the ordered superconducting state is more conventional.},
doi = {},
url = {https://www.osti.gov/biblio/10119863}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 11 00:00:00 EST 1994},
month = {Tue Jan 11 00:00:00 EST 1994}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: