Motivated by the recent experiment in NiGa$_2$S$_4$, the spin-1 Heisenberg model on a triangular lattice with the ferromagnetic nearest- and antiferromagnetic third-nearest-neighbor exchange interactions, $J_1 = -(1-p)J$ and $J_3 = pJ, J > 0$, is studied in the range of the ...
The full phase diagram of the KJ ladder is determined using exact diagonalization and density matrix renormalization group methods, which shows a striking similarity to the KJ model on a two-dimensional honeycomb lattice. 我们研究了双支梯中自旋1/2 Kitaev-Heisenberg (KJ)模型。在没有海森堡相互作用...
The Heisenberg model is also relevant to the frustrated antiferromagnet, Cs2CuCl4. We find rich phase diagrams for each model. The Sp(N) antiferromagnet is shown to have five different phases as a function of the size of the spin and the degree of anisotropy of the triangular lattice. The ...
www.nature.com/scientificreports OPEN Edge magnetism of Heisenberg model on honeycomb lattice received: 10 July 2014 accepted: 30 January 2017 Published: 07 March 2017 Wen-Min Huang1, Toshiya Hikihara2,Yen-Chen Lee3 & Hsiu-Hau Lin3 Edge magnetism in graphene sparks intense ...
The shading illustrates the upward-pointing elementary triangles of one triangular sublattice, on which the vector chirality (κ) is calculated. Dark shading denotes every third upward-pointing triangles, and the vorticity (v) is evaluated on right- and left-pointing triangular loops (green) ...
II we briefly summarize the physical SU(2) Heisenberg and Hubbard-Heisenberg model on the anisotropic triangular lattice. In section III we review the large-N theory of the Sp(N) quantum Heisenberg model. Based on the large-N solution of this model, we present the magnetic phase diagram ...
Lower bound to the ground-state energy of the Heisenberg Hamiltonian on a triangular latticeThis article has no associated abstract. ( fix it )doi:10.1080/14786437608221128Chanchal K. MajumdarB. Sriram ShastryTaylor & Francis GroupPhilosophical Magazine...
Can we observe such a behavior on a lattice simulation?; iii) recent results in the context of high Tc superconductivity have shown a close relation between a very popular model in this area, the Heisenberg model, with lattice gauge theories in 2+1 dimensions. More specifically it has been ...
A jeff = 1/2 Kitaev material on the triangular lattice: the case of NaRuO2 Article Open access 13 July 2023 NaRuO2: Kitaev-Heisenberg exchange in triangular-lattice setting Article Open access 02 October 2023 References J.Villain: J.Chem.Phys.Solids 11, 303 (1957) Article ADS Goog...
(NN), as denoted by... The SLH is a simple yet fundamental quantum lattice model of interacting spins, and hence of great interest on its own. It can be derived as the largeUlimit of the Hubbard model at half-filling [34]. There exists true long-range Néel order in the ground state...