115 citations · 327 across the 11 of their papers we have counts for
17 papers · 1 filter
Supersolid phases of a doped valence-bond quantum antiferromagnet: Evidence for a coexisting superconducting order parameter
Marcin Raczkowski, Didier Poilblanc
Motivated by numerical evidence of the valence bond groundstate of the two-dimensional Heisenberg pyrochlore lattice, we argue using a - model that it evolves under doping in…
Unidirectional Charge Instability of the d-wave RVB Superconductor
Marcin Raczkowski, Manuela Capello, Didier Poilblanc
Starting from a uniform d-wave superconducting phase we study the energy cost due to imposed unidirectional defects with a vanishing pairing amplitude. Both renormalized mean-field…
d-wave Superconductivity, Orbital Magnetism, and Unidirectional Charge Order in the t-J Model
Marcin Raczkowski
Recent scanning tunneling microscopy in the superconducting regime of two different cuprate families has revealed unidirectional bond-centered modulation in the local electronic de…
Stability of RVB hole stripes in high-temperature superconductors
Manuela Capello, Marcin Raczkowski, Didier Poilblanc
Indications of density-wave states in underdoped cuprates, coming from recent STM (scanning tunneling microscopy) and Hall-resistance measurements, have raised new concerns whether…
Unidirectional d-wave superconducting domains in the two-dimensional t-J model
Marcin Raczkowski, Manuela Capello, Didier Poilblanc +2
Motivated by the recently observed pattern of unidirectional domains in high-T_c superconductors [Y. Kohsaka et al., Science 315, 1380 (2007)], we investigate the emergence of spon…
Effect of the next-nearest neighbor hopping on the stability and band structure of the incommensurate phases in the cuprates
Marcin Raczkowski, Raymond Fresard, Andrzej M. Oles
Using a spin-rotation invariant version of the slave-boson approach we investigate the relative stability and band structure of various incommensurate phases in the cuprates. Our f…