On the self-consistent spin-wave theory of frustrated Heisenberg antiferromagnets

1992 ◽  
Vol 4 (22) ◽  
pp. 5227-5237 ◽  
Author(s):  
V Yu Irkhin ◽  
A A Katanin ◽  
M I Katsnelson
Keyword(s):  
Spin Wave ◽  
Wave Theory ◽  
The Self ◽  
Spin Wave Theory ◽  
Self Consistent ◽  
Heisenberg Antiferromagnets

scholarly journals Effects of frustration and cyclic exchange on the spin-1/2 Heisenberg antiferromagnet within the self-consistent spin-wave theory

2016 ◽  
Vol 30 (02) ◽  
pp. 1550251 ◽  
Author(s):  
Milica S. Rutonjski ◽  
Milica V. Pavkov-Hrvojević ◽  
Maja B. Berović
Keyword(s):  
High Temperature ◽  
Spin Wave ◽  
Experimental Studies ◽  
Interlayer Coupling ◽  
Wave Theory ◽  
Wave Dispersion ◽  
The Self ◽  
Spin Wave Theory ◽  
Self Consistent ◽  
Spin Wave Dispersion

The relevance of the quasi-two-dimensional spin-1/2 frustrated quantum antiferromagnet (AFM) due to its possibility of modeling the high-temperature superconducting parent compounds has resulted in numerous theoretical and experimental studies. This paper presents a detailed research of the influence of the varying exchange interactions on the model magnetic properties within the framework of self-consistent spin-wave theory based on Dyson–Maleev (DM) representation. Beside the nearest neighbor (NN) interaction within the plane, the planar frustration up to the third NNs, cyclic interaction and the interlayer coupling are taken into account. The detailed description of the elementary spin excitations, staggered magnetization, spin-wave velocity renormalization factor and ground state energy is given. The results are compared to the predictions of the linear spin-wave theory and when possible also to the second-order perturbative spin-wave expansion results. Finally, having at our disposal improved experimental results for the in-plane spin-wave dispersion in high-[Formula: see text] copper oxide La2CuO4, the self-consistent spin-wave theory (SCSWT) is applied to that compound in order to correct earlier obtained set of exchange parameters and high-temperature spin-wave dispersion.

On the self-consistent spin-wave theory of quasi-2D and anisotropic 2D magnets

1995 ◽  
Vol 140-144 ◽  
pp. 1695-1696 ◽  
Author(s):  
V.Yu. Irkhin ◽  
A.A. Katanin ◽  
M.I. Katsnelson
Keyword(s):  
Spin Wave ◽  
Wave Theory ◽  
The Self ◽  
Spin Wave Theory ◽  
Self Consistent

scholarly journals Self-consistent spin-wave theory of two-dimensional magnets with impurities

1999 ◽  
Vol 60 (21) ◽  
pp. 14779-14786 ◽  
Author(s):  
V. Yu. Irkhin ◽  
A. A. Katanin ◽  
M. I. Katsnelson
Keyword(s):  
Spin Wave ◽  
Wave Theory ◽  
Two Dimensional ◽  
Spin Wave Theory ◽  
Self Consistent
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