Dynamical structure factor of the triangular-lattice antiferromagnet

Heisenberg Antiferromagnet on a Triangular Lattice

Entropy-vanishing Transition and Dynamical Heterogeneities in the Compressible Triangular Lattice Antiferromagnet

In an effort to understand the glass transition, the kinetics of a spin model with frustration but no quenched randomness has been analyzed. The phenomenology of the spin model is similar to that of a supercooled liquid undergoing the glass transition. The slow dynamics exhibited by the spins can be associated with the presence of extended string-like structures which demarcate regions of fast ...

Dynamical structure factor of quasi-2D antiferromagnet in high fields

W. T. Fuhrman, M. Mourigal, M. E. Zhitomirsky, and A. L. Chernyshev Department of Physics, University of California, Irvine, California 92697, USA Institute for Quantum Matter and Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA Service de Physique Statistique, Magnétisme et Supraconductivité, UMR-E9001 CEA-INAC/UJF, 17 rue des Martyrs, 38054 Grenoble Cede...

A Spin-Polaron Technique Utilized on Triangular-Lattice Antiferromagnet

By expressing the Holstein-Primakoff transformation in a symmetric form a modified spin-polaron technique utilized on triangular-lattice antiferromagnet is developed. With the technique, we have treated an extended t-J model, calculated the quasiparticle dispersion, and we also compared the the dispersion with that obtained by other method. PACS: 74.20.-z, 71.27.+a, 75.30.Gw

Charge and Magnetic Orderings in Triangular Lattice Antiferromagnet InFe2O4

InFe2O4 belongs to the RFe2O4 family where R is trivalent cation (R = In, Yb, Lu, Er, or Y). In the rhombohedral crystal structure of this compound as shown in Fig. 1, the double layers of FeO5 bipyramids make two-dimensional triangular lattices and are separated by RO6 octahedra. Since the numbers of Fe and Fe ions are equal in the triangular lattice, the coexistence of charge and magnetic fru...