The pure-quantum self-consistent harmonic approximation, a semiclassical method based on the path-integral formulation of quantum statistical mechanics, is applied to the study of the thermodynamic behaviour of the quantum Heisenberg antiferromagnet on the square lattice (QHAF). Results for various properties are obtained for different values of the spin and successfully compared with experimental data.

The quantum Heisenberg antiferromagnet on the square lattice

1999

Abstract

The pure-quantum self-consistent harmonic approximation, a semiclassical method based on the path-integral formulation of quantum statistical mechanics, is applied to the study of the thermodynamic behaviour of the quantum Heisenberg antiferromagnet on the square lattice (QHAF). Results for various properties are obtained for different values of the spin and successfully compared with experimental data.
1999
Istituto dei Sistemi Complessi - ISC
Inglese
V.Tognetti, R.Vaia, R.Casalbuoni, R.Giachetti, P.Verrucchi
Path Integrals from peV to TeV: 50 Years After Feynman's Paper
6th International Conference on Path integrals from peV to TeV: 50 years after Feynman's paper (PI98)
462
465
4
9810238215
http://inspirehep.net/record/518051/
World Scientific Publishing Co. Pte. Ltd.
Singapore
SINGAPORE
25-29/08/1998
Firenze, Italy
4
none
Acuccoli, ; Vtognetti, ; Pverrucchi, ; Rvaia,
273
info:eu-repo/semantics/conferenceObject
04 Contributo in convegno::04.01 Contributo in Atti di convegno
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/118661
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