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Title: Doped carrier formulation of the t-J model : Monte Carlo study of the anisotropic case
Authors: Ferraz, A.
Kochetov, E.
Maśka, Maciej M.
Mierzejewski, Marcin
Keywords: teorie i modele stanu nadprzewodzącego; skutki wad krystalicznych; metoda Monte Carlo; anizotropia
Issue Date: 2008
Citation: Acta Physica Polonica A, Vol. 114, nr 1 (2008), s. 185-189
Abstract: We derive a doped carrier representation of the t-J model Hamiltonian. Within this approach the t-J model is described in terms of holes hopping in a lattice of correlated spins, where holes are the carriers doped into the half-filled Mott insulator. This representation of the t{J Hamiltonian is very convenient for underdoped systems since close to half-filling it allows for a controlled treatment of the crucial constraint of no doubly occupied sites. When neglecting the transverse spin-spin interaction, the effective Hamiltonian can be investigated with classical Monte Carlo simulations. We discuss the results obtained for systems consisting of several hundred lattice sites.
ISSN: 0587-4246
Appears in Collections:Artykuły (WNŚiT)

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