Magnetic properties of bilayer triangular lattice
ORAL
Abstract
We study magnetic properties of the single-band Hubbard model on a coupled bilayer triangular lattice by using the determinant quantum Monte Carlo method. Simulations are focused in the region near the van Hove singularities. We perform investigations on two kinds of double layer triangular lattices, one is a simple triangular structure which has only one nearest neighbor between two layers for every atom and another one is a graphene-like structure which has three nearest neighbors between two layers for every atom. We compare their magnetic properties in the view of the itinerant electron ferromagnetic theory of attribute their behaviors to the density of states on the Fermi surface.
–
Authors
-
Fei-Ming Hu
Department of Physics and the Institute of Theoretical Physics, the Chinese University of Hong Kong
-
Shi-Quan Su
Department of Physics and the Institute of Theoretical Physics, the Chinese University of Hong Kong
-
Tian-Xing Ma
Max Planck Institute for the Physics of Complex Systems, Noethnitzer Str. 38, D-01187 Dresden, Germany, Department of Physics and the Institute of Theoretical Physics, the Chinese University of Hong Kong
-
Hai-Qing Lin
The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, The Chinese University of Hong Kong, Shatin, Hong Kong, Department of Physics and the Institute of Theoretical Physics, the Chinese University of Hong Kong, Department of Physics, The Chinese University of Hong Kong