14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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- Institut National de Physique Nucléaire et de Physique des ParticulesFR4.1k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR3.2k papers
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32 papers · 2 filters
Cluster-size dependence in cellular dynamical mean-field theory
Shiro Sakai, Giorgio Sangiovanni, Marcello Civelli +3
We examine the cluster-size dependence of the cellular dynamical mean-field theory (CDMFT) applied to the two-dimensional Hubbard model. Employing the continuous-time quantum Monte…
A path to poor coherence in heavy fermions from Mott physics and hybridization
A. Amaricci, L. de Medici, G. Sordi +2
We investigate the anomalous metal arising by hole doping the Mott insulating state of the periodic Anderson model. Using Dynamical Mean-Field Theory we show that, as opposed to th…
Spinon heat transport and spin-phonon interaction in the antiferromagnetic spin-1/2 Heisenberg chain cuprates Sr2CuO3 and SrCuO2
N. Hlubek, X. Zotos, S. Singh +4
We have investigated the thermal conductivity κ_mag of high-purity single crystals of the spin chain compound Sr2CuO3 which is considered an excellent realization of the one-dimens…
BaVS probed by V L edge X-ray absorption spectroscopy
V. Ilakovac, N. B. Brookes, J. Criginski Cezar +10
Polarization dependent vanadium L edge X-ray absorption spectra of BaVS single crystals are measured in the four phases of the compound. The difference between signals with the…
Atomic and itinerant effects at the transition metal x-ray absorption K-pre-edge exemplified in the case of VO
P. Hansmann, M. W. Haverkort, A. Toschi +5
X-ray absorption spectroscopy is a well established tool for obtaining information about orbital and spin degrees of freedom in transition metal- and rare earth-compounds. For this…
Geometry fluctuations in a two-dimensional quantum antiferromagnet
Anuradha Jagannathan, Benoit Douçot, Attila Szallas +1
The paper considers the effects of random fluctuations of the local spin connectivities (fluctuations of the geometry) on ground state properties of a two-dimensional quantum antif…
Exact wavefunctions for excitations of the nu=1/3 fractional quantum Hall state from a model Hamiltonian
Paul Soulé, Thierry Jolicoeur
We study fractional quantum Hall states in the cylinder geometry with open boundaries. By truncating the Coulomb interactions between electrons we show that it is possible to const…
Evolution of the electronic structure of a Mott system across its phase diagram: an X-ray absorption spectroscopy study of (V(1-x)Crx)2O3
F. Rodolakis, J. -P. Rueff, M. Sikora +12
V2O3 is an archetypal system for the study of correlation induced, Mott-Hubbard metal-insulator transitions. Despite decades of extensive investigations, the accurate description o…
Covalency, double-counting and the metal-insulator phase diagram in transition metal oxides
Xin Wang, M. J. Han, Luca de' Medici +3
Dynamical mean field theory calculations are used to show that for late transition-metal-oxides a critical variable for the Mott/charge-transfer transition is the number of d-elect…
Quasiperiodic Heisenberg antiferromagnets in two dimensions
Anuradha Jagannathan
This is a review of the properties of 2d quantum quasiperiodic antiferromagnets as reported in studies that have been carried out in the last decade. Many results have been obtaine…
Field-Induced Freezing of a Quantum Spin Liquid on the Kagome Lattice
M. Jeong, F. Bert, P. Mendels +4
We report 17O NMR measurements in the S=1/2 Cu2+ kagome antiferromagnet Herbertsmithite ZnCu3(OH)6Cl2 down to 45mK in magnetic fields ranging from 2T to 12T. While Herbertsmithite…
Bond disorder and breakdown of ballistic heat transport in the spin-1/2 antiferromagnetic Heisenberg chain as seen in Ca-doped SrCuO2
N. Hlubek, P. Ribeiro, R. Saint-Martin +9
We study the impact of a weak bond disorder on the spinon heat transport in the S=1/2 antiferromagnetic (AFM) Heisenberg chain material Sr_{1-x}Ca_xCuO_2. We observe a drastic supp…
A Tunable Two-impurity Kondo system in an atomic point contact
Jakob Bork, Yong-hui Zhang, Lars Diekhöner +5
Two magnetic atoms, one attached to the tip of a Scanning Tunneling Microscope (STM) and one adsorbed on a metal surface, each constituting a Kondo system, have been proposed as on…
Quantum impurity coupled to Majorana edge fermions
Rok Zitko, Pascal Simon
We study a quantum impurity coupled to the edge states of a two-dimensional helical topological superconductor, i.e., to a pair of counterpropagating Majorana fermion edge channels…
Quantum kagome antiferromagnet: ZnCu3(OH)6Cl2
P. Mendels, F. Bert
Herbertsmithite, ZnCu3(OH)6Cl2, is the prototype candidate for a spin liquid behavior on a geometrically perfect kagome lattice. Its discovery and the absence of any evidence for s…
Melting of a frustration-induced dimer crystal and incommensurability in the J_1-J_2 two-leg ladder
Arthur Lavarélo, Guillaume Roux, Nicolas Laflorencie
The phase diagram of an antiferromagnetic ladder with frustrating next-nearest neighbor couplings along the legs is determined using numerical methods (exact diagonalization and de…
59Co NMR evidence for charge and orbital order in the kagome like structure of Na2/3CoO2
I. R. Mukhamedshin, H. Alloul
We report a complete set of Co NMR data taken on the phase of sodium cobaltates NaCoO, for which we have formerly established the in plane Na ordering an…
Enhanced NMR relaxation of Tomonaga-Luttinger liquids and the magnitude of the carbon hyperfine coupling in single-wall carbon nanotubes
A. Kiss, A. Palyi, Y. Ihara +8
Recent transport measurements [Churchill \textit{et al.} Nat. Phys. \textbf{5}, 321 (2009)] found a surprisingly large, 2-3 orders of magnitude larger than usual C hyperfine…
Janus-faced influence of the Hund's rule coupling in strongly correlated materials
Luca de' Medici, Jernej Mravlje, Antoine Georges
We show that in multi-band metals the correlations are strongly affected by the Hund's rule coupling, which depending on the filling promotes metallic, insulating or bad-metallic b…
Spin Liquid Ground State in the Frustrated Kagome Antiferromagnet MgCu3(OH)6Cl2
E. Kermarrec, P. Mendels, F. Bert +6
We report muSR experiments on Mg{x}Cu{4-x}(OH)6Cl2 with x \sim 1, a new material isostructural to Herbertsmithite exhibiting regular kagome planes of spin 1/2 (Cu^{2+}), and theref…
Electronic confinement and ordering instabilities in colossal magnetoresistive bilayer manganites
J. Trinckauf, T. Hänke, V. Zabolotnyy +11
We present angle-resolved photoemission studies of (La1-zPrz)2-2xSr1+2xMn2O7 with x=0.4 and z=0.1,0.2 and 0.4 along with density functional theory calculations and x-ray scattering…
Ground State and Intrinsic Susceptibility of the Kagome Antiferromagnet Vesignieite as seen by 51V NMR
J. A. Quilliam, F. Bert, R. H. Colman +3
The intrinsic magnetic susceptibility and local magnetization of the near-kagome quantum magnet vesignieite, Cu3BaV2O8(OH)2, are presented as measured using 51V NMR. The NMR line s…
The metallic transport of (TMTSF)_2X organic conductors close to the superconducting phase
Pascale Auban-Senzier, Denis Jérome, Nicolas Doiron-Leyraud +7
Comparing resistivity data of quasi-one dimensional superconductors (TMTSF)_2PF_6 and (TMTSF)_2ClO_4 along the least conducting c*-axis and along the high conductivity a -axis as a…
Linear-T scattering and pairing from antiferromagnetic fluctuations in the (TMTSF)_2X organic superconductors
Nicolas Doiron-Leyraud, Samuel René De Cotret, Abdel Sedeki +5
An exhaustive investigation of metallic electronic transport and superconductivity of organic superconductors (TMTSF)_2PF_6 and (TMTSF)_2ClO_4 in the Pressure-Temperature phase dia…