212 citations · 1.4k across the 38 of their papers we have counts for
4 papers · 1 filter
Large physical spin approach for strongly correlated electrons
A. Angelucci, S. Sorella, D. Poilblanc
We present a novel approach for a systematic large--spin expansion of the - Hamiltonian which enables us to work without the constraint of no double occupancy. In our scheme…
Spin Gaps in Coupled t-J Ladders
D. Poilblanc, H. Tsunetsugu, T. M. Rice
Spin gaps in coupled - ladders are investigated by exact diagonalization of small clusters up to 48 sites. At half-filling, the numerical results for the triplet exci…
Binding of Holes to Magnetic Impurities in a Strongly Correlated System
D. Poilblanc, D. J. Scalapino, W. Hanke
The effect of a magnetic (S=1/2) impurity coupled to a 2D system of correlated electrons (described by the t--J model) is studied by exact diagonalisations. It is found that, if th…
Magnetic order and disorder in the frustrated quantum Heisenberg antiferromagnet in two dimensions
H. J. Schulz, T. A. L. Ziman, D. Poilblanc
We have performed a numerical investigation of the ground state properties of the frustrated quantum Heisenberg antiferromagnet on the square lattice (`` model''), using e…