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87.755  Articles
1 of 8.777 pages  |  10  records  |  more records»
ERRATUM: Néel State in the Fermionized Spin 12\frac{1}{2} Heisenberg Antiferromagnet on Hypercubic and Triangular Lattices [Pham Thi Thanh Nga and Nguyen Toan Thang, Comm. Phys. 22\textit{Comm. Phys. } \textbf{22} (1) (2012) 33]



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 a... see more

We study the magnetic ordered phases of the spin -12-\frac{1}{2} Heisenberg antiferromagnetic model with nearest J1J_1 and next nearest neighbor J2J_2 exchange interactions on the square lattice using fermionic representation of spin operators within Pop... see more

We study the Néel state of the spin 1/2 Heisenberg antiferromagnet model on hypercubic and triangular lattices, employing an auxiliary fermion representation for spin operators with Popov-Fedotov trick. The unphysical states are eliminated on each site b... see more

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We have analyzed the spin-1/2 isotropic Heisenberg antiferromagnetic system on triangular lattice within Popov--Fedotov functional intergral formalism when the spin operators are represented by the fermionic ones and the constraint of single occupancy con... see more

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