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Title: Effects of intrabilayer coupling on the magnetic properties of YBa{sub 2}Cu{sub 3}O{sub 6}

Abstract

A two-layer Heisenberg antiferromagnet is studied as a model of the bilayer cuprate YBa{sub 2}Cu{sub 3}O{sub 6}. Quantum Monte Carlo results are presented for the temperature dependence of the spin correlation length, the static structure factor, the magnetic susceptibility, and the {sup 63}Cu NMR spin-echo decay rate 1/{ital T}{sub 2{ital G}}. As expected, when the ratio {ital J}{sub 2}/{ital J}{sub 1} of the intrabilayer and in-plane coupling strengths is small, increasing {ital J}{sub 2} pushes the system deeper inside the renormalized classical regime. Even for {ital J}{sub 2}/{ital J}{sub 1} as small as 0.1 the correlations are considerably enhanced at temperatures as high as {ital T}/{ital J}{sub 1}{approx_equal}0.4{endash}0.5. This has a significant effect on 1/{ital T}{sub 2{ital G}}, and it is suggested that measurements of this quantity at high temperatures can reveal the strength of the intrabilayer coupling in YBa{sub 2}Cu{sub 3}O{sub 6}. {copyright} {ital 1996 The American Physical Society.}

Authors:
 [1];  [2]
  1. National High Magnetic Field Laboratory, Florida State University, 1800 East Paul Dirac Drive, Tallahassee, Florida 32306 (United States)
  2. Department of Physics, University of California, Santa Barbara, California 93106 (United States)
Publication Date:
OSTI Identifier:
277333
DOE Contract Number:  
FG03-85ER45197
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 53; Journal Issue: 2; Other Information: PBD: Jan 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 66 PHYSICS; HIGH-TC SUPERCONDUCTORS; MAGNETIC PROPERTIES; YTTRIUM OXIDES; BARIUM OXIDES; COPPER OXIDES; HEISENBERG MODEL; ANTIFERROMAGNETISM; MONTE CARLO METHOD; TEMPERATURE DEPENDENCE; SPIN; STRUCTURE FACTORS; NMR SPECTRA; COUPLING

Citation Formats

Sandvik, A W, and Scalapino, D J. Effects of intrabilayer coupling on the magnetic properties of YBa{sub 2}Cu{sub 3}O{sub 6}. United States: N. p., 1996. Web. doi:10.1103/PhysRevB.53.R526.
Sandvik, A W, & Scalapino, D J. Effects of intrabilayer coupling on the magnetic properties of YBa{sub 2}Cu{sub 3}O{sub 6}. United States. doi:10.1103/PhysRevB.53.R526.
Sandvik, A W, and Scalapino, D J. Mon . "Effects of intrabilayer coupling on the magnetic properties of YBa{sub 2}Cu{sub 3}O{sub 6}". United States. doi:10.1103/PhysRevB.53.R526.
@article{osti_277333,
title = {Effects of intrabilayer coupling on the magnetic properties of YBa{sub 2}Cu{sub 3}O{sub 6}},
author = {Sandvik, A W and Scalapino, D J},
abstractNote = {A two-layer Heisenberg antiferromagnet is studied as a model of the bilayer cuprate YBa{sub 2}Cu{sub 3}O{sub 6}. Quantum Monte Carlo results are presented for the temperature dependence of the spin correlation length, the static structure factor, the magnetic susceptibility, and the {sup 63}Cu NMR spin-echo decay rate 1/{ital T}{sub 2{ital G}}. As expected, when the ratio {ital J}{sub 2}/{ital J}{sub 1} of the intrabilayer and in-plane coupling strengths is small, increasing {ital J}{sub 2} pushes the system deeper inside the renormalized classical regime. Even for {ital J}{sub 2}/{ital J}{sub 1} as small as 0.1 the correlations are considerably enhanced at temperatures as high as {ital T}/{ital J}{sub 1}{approx_equal}0.4{endash}0.5. This has a significant effect on 1/{ital T}{sub 2{ital G}}, and it is suggested that measurements of this quantity at high temperatures can reveal the strength of the intrabilayer coupling in YBa{sub 2}Cu{sub 3}O{sub 6}. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevB.53.R526},
journal = {Physical Review, B: Condensed Matter},
number = 2,
volume = 53,
place = {United States},
year = {1996},
month = {1}
}