Theoretical Study of the Frustrated Ising Antiferromagnet on the Honeycomb Lattice

被引：3
|
作者：
Bobak, A. [1 ]
Lucivjansky, T. [1 ,2 ]
Zukovic, M. [1 ]
Borovsky, M. [1 ]
Balcerzak, T. [3 ]
机构：
[1] Safarik Univ, Fac Sci, Inst Phys, Pk Angelinum 9, Kosice 04154, Slovakia
[2] Univ Duisburg Essen, Fak Phys, D-47048 Duisburg, Germany
[3] Univ Lodz, Dept Solid State Phys, Pomorska 149-153, PL-90236 Lodz, Poland
来源：
ACTA PHYSICA POLONICA A | 2017年 / 131卷 / 04期
关键词：
MODELS;
D O I：
10.12693/APhysPolA.131.636
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study effects of the next-next-nearest-neighbour antiferromagnetic (J(3) < 0) interaction on critical properties (or phase diagram) of the frustrated spin-1/2 J(1) - J(2) - J(3) Ising antiferromagnet on the honeycomb lattice by using the effective-field theory with correlations. Beside the ground-state energy, we find that there is a region of J(3) < 0 in which the frustrated honeycomb lattice antiferromagnet exhibits a tricritical point, at which the phase transition changes from the second order to the first one on the line between Neel antiferromagnetic and paramagnetic phases.
引用
收藏
页码：636 / 638
页数：3
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