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Title: Recent high-magnetic-field experiments on the 'high Tc' cuprates: Fermi-surface instabilities as a driver for superconductivity

Abstract

The authors give a brief review of high-magnetic-field quantum-oscillation measurements on cuprate superconductors. In the case of the underdoped cuprates, a number of small Fermi-surface pockets are observed, probably due to the incommensurate nesting of the predicted (large) hole Fermi surface. The Fermi-surface instabilities that drive this nesting are also likely to result in the incommensurate spin fluctuations observed in inelastic neutron-scattering measurements. They suggest that the unusually high superconducting transitions in the cuprates are driven by an exact mapping of these incommensurate spin fluctuations onto the d{sub x{sup 2}-y{sup 2}} Cooper-pair wavefunction. The maximum energy of the fluctuations {approx} 100s of Kelvin gives an appropriate energy scale for the superconducting transition temperature.

Authors:
 [1];  [1];  [1]
  1. Los Alamos National Laboratory
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
964976
Report Number(s):
LA-UR-08-05929; LA-UR-08-5929
TRN: US200919%%409
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article
Journal Name:
Journal of Physics B
Additional Journal Information:
Journal Name: Journal of Physics B
Country of Publication:
United States
Language:
English
Subject:
36; CUPRATES; FERMI LEVEL; FLUCTUATIONS; SPIN; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TRANSITION TEMPERATURE

Citation Formats

Singleton, John, Mc Donald, Ross D, and Cox, Susan. Recent high-magnetic-field experiments on the 'high Tc' cuprates: Fermi-surface instabilities as a driver for superconductivity. United States: N. p., 2008. Web.
Singleton, John, Mc Donald, Ross D, & Cox, Susan. Recent high-magnetic-field experiments on the 'high Tc' cuprates: Fermi-surface instabilities as a driver for superconductivity. United States.
Singleton, John, Mc Donald, Ross D, and Cox, Susan. 2008. "Recent high-magnetic-field experiments on the 'high Tc' cuprates: Fermi-surface instabilities as a driver for superconductivity". United States. https://www.osti.gov/servlets/purl/964976.
@article{osti_964976,
title = {Recent high-magnetic-field experiments on the 'high Tc' cuprates: Fermi-surface instabilities as a driver for superconductivity},
author = {Singleton, John and Mc Donald, Ross D and Cox, Susan},
abstractNote = {The authors give a brief review of high-magnetic-field quantum-oscillation measurements on cuprate superconductors. In the case of the underdoped cuprates, a number of small Fermi-surface pockets are observed, probably due to the incommensurate nesting of the predicted (large) hole Fermi surface. The Fermi-surface instabilities that drive this nesting are also likely to result in the incommensurate spin fluctuations observed in inelastic neutron-scattering measurements. They suggest that the unusually high superconducting transitions in the cuprates are driven by an exact mapping of these incommensurate spin fluctuations onto the d{sub x{sup 2}-y{sup 2}} Cooper-pair wavefunction. The maximum energy of the fluctuations {approx} 100s of Kelvin gives an appropriate energy scale for the superconducting transition temperature.},
doi = {},
url = {https://www.osti.gov/biblio/964976}, journal = {Journal of Physics B},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {1}
}