Erratum: “Emergence of a Dimer–Dimer Interaction in the Low-Energy Effective Quantum-Dimer Model of a Diamond-Like-Decorated Square-Lattice Heisenberg Antiferromagnets with Further Neighbor Couplings” [J. Phys. Soc. Jpn. 86, 124002 (2017)]

2018 ◽  
Vol 87 (4) ◽  
pp. 048001 ◽  
Author(s):  
Yuhei Hirose ◽  
Akihide Oguchi ◽  
Yoshiyuki Fukumoto
2020 ◽  
Vol 102 (17) ◽  
Author(s):  
Neil Wilkins ◽  
Stephen Powell
Keyword(s):  

1994 ◽  
Vol 08 (16) ◽  
pp. 2203-2219 ◽  
Author(s):  
V.I. BELINICHER ◽  
L.V. POPOVICH

The low-energy properties of the two-dimensional Heisenberg model with spin-½ on a square lattice are investigated on the basis of the local dimer order. The lattice is divided into square blocks consisting of the quartets of spins. The spin variables and the Heisenberg Hamiltonian are expressed in terms of the low-energy quartet variables. On the basis of the Dyson-Maleev representation, the spin-wave theory of the quartet state is developed. The spectrum of the lower magnon excitations consists of three degenerate modes with the energy gap Δ=0.17J. The ground state energy per spin E/N=−0.6J. Calculations of the basic corrections make the work complete.


1995 ◽  
Vol 75 (5) ◽  
pp. 938-941 ◽  
Author(s):  
N. Elstner ◽  
A. Sokol ◽  
R. R. P. Singh ◽  
M. Greven ◽  
R. J. Birgeneau

Sign in / Sign up

Export Citation Format

Share Document