8 pages, 5 figures, 4 tables; Figure 2 and Table II updatedInternational audienceThe singlet dynamics which plays a major role in the physics of the spin-1/2 Quantum Heisenberg Antiferromagnet (QHAF) on the Kagome lattice can be approximately described by projecting onto the nearest-neighbor valence bond (NNVB) singlet subspace. We re-visit here the effective Quantum Dimer Model which originates from the latter NNVB-projected Heisenberg model via a non-perturbative Rokhsar-Kivelson-like scheme. By using Lanczos exact diagonalisation on a 108-site cluster supplemented by a careful symmetry analysis, it is shown that a previously-found 36-site Valence Bond Crystal (VBC) in fact competes with a new type of 12-site "{\it resonating-columnar}" V...
International audienceIt is well known that the low-energy sector of quantum spin liquids and other ...
7 pages, 3 figuresAn effective spin-orbit Hamiltonian is derived for a spin-1/2 trimerized kagome an...
We study spin-1/2 Heisenberg antiferromagnets on a diamond-like-decorated square lattice. The diamon...
8 pages, 5 figures, 4 tables; Figure 2 and Table II updatedInternational audienceThe singlet dynamic...
International audienceThe spin-1 2 Heisenberg model on the kagome lattice, which is closely realized...
© 2018 American Physical Society. The spin-12 Heisenberg model on the kagome lattice, which is close...
3siIn this paper, we do a complete classification of valence-bond crystals (VBCs) on the kagome latt...
We revisit the description of the low-energy singlet sector of the spin-1/2 Heisenberg antiferromagn...
9 pagesInternational audienceThe doping of quantum Heisenberg antiferromagnets on the kagome lattice...
The highly frustrated spin-1/2 quantum Heisenberg model with both nearest (J(1)) and next-nearest (J...
Using both exact diagonalizations and diagonalizations in a subset of short-range valence-bond singl...
Extensive calculations in the short-range RVB (Resonating valence bond) subspace on both the trimeri...
Strongly correlated systems on geometrically frustrated lattices can stabilize a large number of int...
International audienceStarting from the mean-field solution of a spin-orbital model of LiNiO 2 , we ...
The spin-1/2 Heisenberg kagome antiferromagnet is one of the paradigmatic playgrounds for frustrated...
International audienceIt is well known that the low-energy sector of quantum spin liquids and other ...
7 pages, 3 figuresAn effective spin-orbit Hamiltonian is derived for a spin-1/2 trimerized kagome an...
We study spin-1/2 Heisenberg antiferromagnets on a diamond-like-decorated square lattice. The diamon...
8 pages, 5 figures, 4 tables; Figure 2 and Table II updatedInternational audienceThe singlet dynamic...
International audienceThe spin-1 2 Heisenberg model on the kagome lattice, which is closely realized...
© 2018 American Physical Society. The spin-12 Heisenberg model on the kagome lattice, which is close...
3siIn this paper, we do a complete classification of valence-bond crystals (VBCs) on the kagome latt...
We revisit the description of the low-energy singlet sector of the spin-1/2 Heisenberg antiferromagn...
9 pagesInternational audienceThe doping of quantum Heisenberg antiferromagnets on the kagome lattice...
The highly frustrated spin-1/2 quantum Heisenberg model with both nearest (J(1)) and next-nearest (J...
Using both exact diagonalizations and diagonalizations in a subset of short-range valence-bond singl...
Extensive calculations in the short-range RVB (Resonating valence bond) subspace on both the trimeri...
Strongly correlated systems on geometrically frustrated lattices can stabilize a large number of int...
International audienceStarting from the mean-field solution of a spin-orbital model of LiNiO 2 , we ...
The spin-1/2 Heisenberg kagome antiferromagnet is one of the paradigmatic playgrounds for frustrated...
International audienceIt is well known that the low-energy sector of quantum spin liquids and other ...
7 pages, 3 figuresAn effective spin-orbit Hamiltonian is derived for a spin-1/2 trimerized kagome an...
We study spin-1/2 Heisenberg antiferromagnets on a diamond-like-decorated square lattice. The diamon...