scholarly journals Magnetic order and spin excitations in the Kitaev–Heisenberg model on a honeycomb lattice

2016 ◽  
Vol 122 (6) ◽  
pp. 1060-1069 ◽  
Author(s):  
A. A. Vladimirov ◽  
D. Ihle ◽  
N. M. Plakida
Keyword(s):  
Heisenberg Model ◽  
Magnetic Order ◽  
Honeycomb Lattice ◽  
Spin Excitations

scholarly journals Magnetic Order in Heisenberg Models on Non-Bravais Lattice: Popov-Fedotov Functional Method

2019 ◽  
Vol 29 (2) ◽  
pp. 119 ◽  
Author(s):  
Pham Thi Thanh Nga ◽  
Nguyen Toan Thang
Keyword(s):  
Magnetic Properties ◽  
Heisenberg Model ◽  
Magnetic Order ◽  
Functional Method ◽  
Functional Integral ◽  
Honeycomb Lattice ◽  
Bravais Lattice ◽  
Heisenberg Antiferromagnet ◽  
Integral Formalism ◽  
Functional Integral Formalism

We study magnetic properties of ordered phase in Heisenberg model on a non-Bravais lattice by means of Popov - Fedotov trick, which takes into account a rigorous constraint of a single occupancy. We derive magnetization and free energy using sadle point approximation in the functional integral formalism. We illustrate the application of the Popov -- Fedotov approach to the Heisenberg antiferromagnet on a honeycomb lattice.

Spin excitations in an anisotropic J 1–J 2 Heisenberg model

2013 ◽  
Vol 177 (2) ◽  
pp. 1540-1554 ◽  
Author(s):  
A. A. Vladimirov ◽  
D. Ihle ◽  
N. M. Plakida
Keyword(s):  
Heisenberg Model ◽  
Spin Excitations

scholarly journals Plaquette order in the SU(6) Heisenberg model on the honeycomb lattice

2016 ◽  
Vol 93 (20) ◽  
Author(s):  
Pierre Nataf ◽  
Miklós Lajkó ◽  
Philippe Corboz ◽  
Andreas M. Läuchli ◽  
Karlo Penc ◽  
...  
Keyword(s):  
Heisenberg Model ◽  
Honeycomb Lattice
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