Dominant antiferromagnetism in the Hubbard model on anisotropic triangular lattices
نویسندگان
چکیده
منابع مشابه
Magnetic correlations in the Hubbard model on triangular and Kagomé lattices.
In order to study the magnetic properties of frustrated metallic systems, we present, for the first time, quantum Monte Carlo data on the magnetic susceptibility of the Hubbard model on triangular and kagomé lattices. We show that the underlying lattice structure determines the nature and the doping dependence of the magnetic fluctuations. In particular, in the doped kagomé case we find strong ...
متن کاملHubbard model on decorated lattices.
We introduce a family of lattices for which the Hubbard model and its natural extensions can be quasiexactly solved, i.e., solved for the ground and low energy states. In particular, we show rigorously that the ground state of the Hubbard model with off-site Coulomb repulsions on a decorated Kagomè lattice is an ordered array of local currents. The low energy theory describing this chiral state...
متن کاملUnconventional superconductivity on the triangular lattice Hubbard model
Kuang Shing Chen,1,* Zi Yang Meng,1,2,† Unjong Yu,3 Shuxiang Yang,1,2 Mark Jarrell,1,2 and Juana Moreno1,2 1Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA 2Center for Computation and Technology, Louisiana State University, Baton Rouge, Louisiana 70803, USA 3GIST-College, Gwangju Institute of Science and Technology, Gwangju 500-712, Korea (Rece...
متن کاملDamage spreading in two dimensional geometrically frustrated lattices: the triangular and kagome anisotropic Heisenberg model
The technique of damage spreading is used to study the phase diagram of the easy axis anisotropic Heisenberg antiferromagnet on two geometrically frustrated lattices. The triangular and kagome systems are built up from triangular units that either share edges or corners respectively. The triangular lattice undergoes two sequential Kosterlitz-Thouless transitions while the kagome lattice undergo...
متن کاملKinetic antiferromagnetism in the triangular lattice.
We show that the motion of a single hole in the infinite-U Hubbard model with frustrated hopping leads to weak metallic antiferromagnetism of kinetic origin. An intimate relationship is demonstrated between the simplest versions of this problem in one and two dimensions, and two of the most subtle many body problems, namely, the Heisenberg Bethe ring in one dimension and the two-dimensional tri...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Magnetism and Magnetic Materials
سال: 2007
ISSN: 0304-8853
DOI: 10.1016/j.jmmm.2006.10.106