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

页码：636 / 638

页数：3

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