Excitation spectrum of~Heisenberg antiferromagnet at~finite temperatures
Teoretičeskaâ i matematičeskaâ fizika, Tome 83 (1990) no. 1, pp. 147-157
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It is shown that the spectrum of spin-wave excitations in a Heisenberg antiferromagnet can be described consistently in the framework of the method of irreducible Green's functions. The anomalous contributions to the renormalization of the mean field are taken into account from the very beginning. The spin wave damping is calculated self-consistently.
@article{TMF_1990_83_1_a14,
author = {A. L. Kuzemsky and D. Marvakov},
title = {Excitation spectrum {of~Heisenberg} antiferromagnet at~finite temperatures},
journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
pages = {147--157},
publisher = {mathdoc},
volume = {83},
number = {1},
year = {1990},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/TMF_1990_83_1_a14/}
}
TY - JOUR AU - A. L. Kuzemsky AU - D. Marvakov TI - Excitation spectrum of~Heisenberg antiferromagnet at~finite temperatures JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1990 SP - 147 EP - 157 VL - 83 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1990_83_1_a14/ LA - ru ID - TMF_1990_83_1_a14 ER -
A. L. Kuzemsky; D. Marvakov. Excitation spectrum of~Heisenberg antiferromagnet at~finite temperatures. Teoretičeskaâ i matematičeskaâ fizika, Tome 83 (1990) no. 1, pp. 147-157. http://geodesic.mathdoc.fr/item/TMF_1990_83_1_a14/