Projected spin wave theory. II. Ground state properties of S=1/2 Heisenberg antiferromagnets

1985 ◽  
Vol 18 (33) ◽  
pp. 6259-6271 ◽  
Author(s):  
L M Floria ◽  
R Navarro
Keyword(s):  
Spin Wave ◽  
Ground State ◽  
Wave Theory ◽  
Spin Wave Theory ◽  
Ground State Properties ◽  
Heisenberg Antiferromagnets

The Heisenberg model: Classical ground state and bilinear spin-wave theory

Physica B+C ◽  
1982 ◽  
Vol 112 (2) ◽  
pp. 147-187 ◽  
Author(s):  
C.A.M. Mulder ◽  
H.W. Capel ◽  
J.H.H. Perk
Keyword(s):  
Spin Wave ◽  
Ground State ◽  
Heisenberg Model ◽  
Wave Theory ◽  
Spin Wave Theory

Application of spin-wave theory to the ground state ofXYquantum Hamiltonians

1987 ◽  
Vol 36 (16) ◽  
pp. 8707-8711 ◽  
Author(s):  
G. Gomez-Santos ◽  
J. D. Joannopoulos
Keyword(s):  
Spin Wave ◽  
Ground State ◽  
Wave Theory ◽  
Spin Wave Theory

scholarly journals FINITE-SIZE SPIN-WAVE THEORY OF A COLLINEAR ANTIFERROMAGNET

2003 ◽  
Vol 17 (27) ◽  
pp. 4819-4829 ◽  
Author(s):  
LUCA CAPRIOTTI
Keyword(s):  
Spin Wave ◽  
Ground State ◽  
Heisenberg Model ◽  
Order Parameter ◽  
Finite Size ◽  
Wave Theory ◽  
Spin Wave Theory ◽  
Scattering Measurements ◽  
Magnetic Structure Factor ◽  
Remarkable Agreement

The ground-state and low-energy properties of the two-dimensional J1-J2 Heisenberg model in the collinear phase are investigated using finite-size spin-wave theory [Q. F. Zhong and S. Sorella, Europhys. Lett.21, 629 (1993)], and Lanczos exact diagonalizations. For spin one-half — where the effects of quantization are the strongest — the spin-wave expansion turns out to be quantitatively accurate for J2/J1≳0.8. In this regime, both the magnetic structure factor and the spin susceptibility are very close to the spin-wave predictions. The spin-wave estimate of the order parameter in the collinear phase, m†≃0.3, is in remarkable agreement with recent neutron scattering measurements on Li 2 VOSiO 4.

Spin-wave theory for anisotropic Heisenberg antiferromagnets

1991 ◽  
Vol 44 (1) ◽  
pp. 446-449 ◽  
Author(s):  
C. M. Soukoulis ◽  
Sreela Datta ◽  
Young Hee Lee
Keyword(s):  
Spin Wave ◽  
Wave Theory ◽  
Spin Wave Theory ◽  
Heisenberg Antiferromagnets
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