Phase Transition of the Two-Dimensional Heisenberg Antiferromagnet on the Triangular Lattice

1984 ◽  
Vol 53 (1) ◽  
pp. 9-12 ◽  
Author(s):  
Hikaru Kawamura ◽  
Seiji Miyashita
Keyword(s):  
Phase Transition ◽  
Triangular Lattice ◽  
Two Dimensional ◽  
Heisenberg Antiferromagnet

Magnetic Phase Transition in the Two-Dimensional Heisenberg Antiferromagnet Mn(HCOO)2·2(NH2)2CO

1989 ◽  
Vol 58 (10) ◽  
pp. 3489-3492 ◽  
Author(s):  
Kazuyoshi Takeda ◽  
Hiroyuki Deguchi ◽  
Takahiro Hoshiko ◽  
Kazuo Yamagata
Keyword(s):  
Phase Transition ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Two Dimensional ◽  
Heisenberg Antiferromagnet

LOW TEMPERATURE ACTION FOR QUANTUM ANTIFERROMAGNETS ON A TRIANGULAR LATTICE

1990 ◽  
Vol 04 (04) ◽  
pp. 569-580 ◽  
Author(s):  
ANTIMO ANGELUCCI
Keyword(s):  
Low Temperature ◽  
Configuration Space ◽  
Triangular Lattice ◽  
Ground State ◽  
Two Dimensional ◽  
Heisenberg Antiferromagnet ◽  
Low Frequencies ◽  
Quantum Antiferromagnets ◽  
Temperature Action

We present the long-wavelengths/low-frequencies action of a two-dimensional quantum Heisenberg antiferromagnet of general spin magnitude s on a triangular lattice which describe the fluctuations around the ordered Neél ground state. This action is a nonlinear σ-model whose configuration space is the SO(3) manifold, in this respect being different from the usual S2 σ-model which models an antiferromagnet on a bipartite lattice. We present a map on a O(4)-model which allows to study the properties of the system.

scholarly journals Quantum Phase Transition of Two-Dimensional Diluted Heisenberg Antiferromagnet

2000 ◽  
Vol 138 ◽  
pp. 507-512 ◽  
Author(s):  
Synge Todo ◽  
Chitoshi Yasuda ◽  
Kiyoshi Kato ◽  
Kenji Harada ◽  
Naoki Kawashima ◽  
...  
Keyword(s):  
Phase Transition ◽  
Quantum Phase Transition ◽  
Quantum Phase ◽  
Two Dimensional ◽  
Heisenberg Antiferromagnet
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