Neutron scattering study of the two-dimensional spinS=1/2 square-lattice Heisenberg antiferromagnet Sr2CuO2Cl2 View Full Text


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Article Info

DATE

1995-12

AUTHORS

M. Greven, R. J. Birgeneau, Y. Endoh, M. A. Kastner, M. Matsuda, G. Shirane

ABSTRACT

We have carried out a neutron scattering investigation of the static structure factorS(q2D) (q2D is the in-plane wave vector) in the two-dimensional spinS=1/2 square-lattice Heisenberg antiferromagnet Sr2CuO2Cl2. For the spin correlation length ξ we find quantitative agreement with Monte Carlo results over a wide range of temperature. The combined Sr2CuO2Cl2-Monte Carlo data, which cover the length scale from ≈1 to 200 lattice constants, are predicted without adjustable parameteres by renormalized classical theory for the quantum nonlinear sigma model. For the structure factor peakS(0), on the other hand, we findS(0)∼ξ2 for the reduced temperature range 0.16 More... »

PAGES

465-477

References to SciGraph publications

  • 1994-06. A determination of the low energy parameters of the 2-d Heisenberg antiferromagnet in ZEITSCHRIFT FÜR PHYSIK B CONDENSED MATTER
  • 1993-09. Soft phonon behavior and magnetism at the low temperature structural phase transition of La1.65Nd0.35CuO4 in ZEITSCHRIFT FÜR PHYSIK B CONDENSED MATTER
  • 1931-03. Zur Theorie der Metalle in ZEITSCHRIFT FÜR PHYSIK A HADRONS AND NUCLEI
  • 1988-09. Valence bond ground states in isotropic quantum antiferromagnets in COMMUNICATIONS IN MATHEMATICAL PHYSICS
  • 1986-06. Possible highTc superconductivity in the Ba−La−Cu−O system in ZEITSCHRIFT FÜR PHYSIK B CONDENSED MATTER
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    http://dx.doi.org/10.1007/bf01313844

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