Spin-correlations and low lying excited states of the spin-1/2 Heisenberg antiferromagnet on a square lattice

P. Horsch; W. Von der Linden

doi:10.1007/BF01312134

Spin-correlations and low lying excited states of the spin-1/2 Heisenberg antiferromagnet on a square lattice

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Abstract

The ground state and the lowest excited states of the spin 1/2-Heisenberg model are investigated by exact diagonalization and variational Monte Carlo techniques. Our trial state represents a generalization of a wave function introduced by Hulthen, Kasteleijn and Marshall. The long range character of the spin-correlation function is in excellent agreement with exact diagonalization and also with recent neutron scattering results for La2CuO4. The asymptotic behavior of the spin-correlation function is found to differ from spin-wave theory. From the exact (N

Original language	English
Pages (from-to)	181-193
Number of pages	13
Journal	Zeitschrift für Physik: B
Volume	72
Issue number	2
DOIs	https://doi.org/10.1007/BF01312134
Publication status	Published - 1988
Externally published	Yes

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title = "Spin-correlations and low lying excited states of the spin-1/2 Heisenberg antiferromagnet on a square lattice",

abstract = "The ground state and the lowest excited states of the spin 1/2-Heisenberg model are investigated by exact diagonalization and variational Monte Carlo techniques. Our trial state represents a generalization of a wave function introduced by Hulthen, Kasteleijn and Marshall. The long range character of the spin-correlation function is in excellent agreement with exact diagonalization and also with recent neutron scattering results for La2CuO4. The asymptotic behavior of the spin-correlation function is found to differ from spin-wave theory. From the exact (N",

author = "P. Horsch and {Von der Linden}, W.",

year = "1988",

doi = "10.1007/BF01312134",

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T1 - Spin-correlations and low lying excited states of the spin-1/2 Heisenberg antiferromagnet on a square lattice

AU - Horsch, P.

AU - Von der Linden, W.

PY - 1988

Y1 - 1988

N2 - The ground state and the lowest excited states of the spin 1/2-Heisenberg model are investigated by exact diagonalization and variational Monte Carlo techniques. Our trial state represents a generalization of a wave function introduced by Hulthen, Kasteleijn and Marshall. The long range character of the spin-correlation function is in excellent agreement with exact diagonalization and also with recent neutron scattering results for La2CuO4. The asymptotic behavior of the spin-correlation function is found to differ from spin-wave theory. From the exact (N

AB - The ground state and the lowest excited states of the spin 1/2-Heisenberg model are investigated by exact diagonalization and variational Monte Carlo techniques. Our trial state represents a generalization of a wave function introduced by Hulthen, Kasteleijn and Marshall. The long range character of the spin-correlation function is in excellent agreement with exact diagonalization and also with recent neutron scattering results for La2CuO4. The asymptotic behavior of the spin-correlation function is found to differ from spin-wave theory. From the exact (N

U2 - 10.1007/BF01312134

DO - 10.1007/BF01312134

M3 - Article

SN - 0722-3277

VL - 72

SP - 181

EP - 193

JO - Zeitschrift für Physik: B

JF - Zeitschrift für Physik: B

IS - 2

ER -

Spin-correlations and low lying excited states of the spin-1/2 Heisenberg antiferromagnet on a square lattice

Abstract

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