activity
19922002
most citedMagnetic order and disorder in the frustrated quantum Heisenberg antiferromagnet in two dimensions

212 citations · 1.4k across the 38 of their papers we have counts for

collaborators

38 papers

cond-mat.str-el2002★ 23 cited

Calculation of Delta (k,omega) for a 2D t-J cluster

Didier Poilblanc, D. J. Scalapino

Using numerical techniques, the diagonal and off-diagonal superconducting one-electron Green's functions are calculated for a two-dimensional (2D) t-J model on a periodic 32-site c…

cond-mat.str-el2001★ 57 cited

Influence of the anion potential on the charge ordering in quasi-one dimensional charge transfer salts

Jose Riera, Didier Poilblanc

We examine the various instabilities of quarter-filled strongly correlated electronic chains in the presence of a coupling to the underlying lattice. To mimic the physics of the (T…

cond-mat.str-el2000★ 4 cited

Recent progress in the truncated Lanczos method : application to hole-doped spin ladders

O. Chiappa, S. Capponi, D. Poilblanc

The truncated Lanczos method using a variational scheme based on Hilbert space reduction as well as a local basis change is re-examined. The energy is extrapolated as a power law f…

cond-mat2000★ 31 cited

Evolution of the Spin Gap Upon Doping a 2-Leg Ladder

D. Poilblanc, O. Chiappa, J. Riera +2

The evolution of the spin gap of a 2-leg ladder upon doping depends upon the nature of the lowest triplet excitations in a ladder with two holes. Here we study this evolution using…

cond-mat.stat-mech1999★ 10 cited

Low-energy excitations of spin-Peierls chains with modified bond-impurities

D. Augier, J. Riera, D. Poilblanc

The introduction of modified bond-defects in spin-Peierls systems is investigated in a model of antiferromagnetic Heisenberg spin chains coupled to adiabatic phonons. Generically,…

cond-mat.str-el1999★ 24 cited

Antiferromagnetism in doped anisotropic two-dimensional spin-Peierls systems

A. Dobry, P. Hansen, J. Riera +2

We study the formation of antiferromagnetic correlations induced by impurity doping in anisotropic two-dimensional spin-Peierls systems. Using a mean-field approximation to deal wi…