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

Journal Article · Mon Jan 01 04:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.R526· OSTI ID:277333

Sandvik, A W ^[1]; Scalapino, D J ^[2]

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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)

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.}

• DOE Contract Number: FG03-85ER45197
• OSTI ID: 277333
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 2 Vol. 53; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
ANTIFERROMAGNETISM
BARIUM OXIDES
COPPER OXIDES
COUPLING
HEISENBERG MODEL
HIGH-TC SUPERCONDUCTORS
MAGNETIC PROPERTIES
MONTE CARLO METHOD
NMR SPECTRA
SPIN
STRUCTURE FACTORS
TEMPERATURE DEPENDENCE
YTTRIUM OXIDES