14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR10.1k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR4.1k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR3.2k papers
- Université Paris-SaclayFR3.1k papers
- National Institute for Subatomic PhysicsNL2k papers
- University of ManchesterGB2k papers
- Sapienza University of RomeIT2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT1.9k papers
- CEA Paris-SaclayFR1.9k papers
- Heidelberg UniversityDE1.8k papers
- Rutherford Appleton LaboratoryGB1.8k papers
- Laboratoire de Physique Nucléaire et de Hautes ÉnergiesFR1.8k papers
26 papers · 2 filters
The ferroelectric Mott-Hubbard phase of organic (TMTTF)2X conductors
P. Monceau, F. Ya. Nad, S. Brazovskii
We present experimental evidences for a ferro-electric transition in the family of quasi one- dimensional conductors (TMTTF)2X. We interpret this new transition in the frame of the…
Role of dynamic Jahn-Teller distortions in Na2C60 and Na2CsC60 studied by NMR
V. Brouet, H. Alloul, T. N. Le +2
Through 13C NMR spin lattice relaxation (T1) measurements in cubic Na2C60, we detect a gap in its electronic excitations, similar to that observed in tetragonal A4C60. This establi…
Influence of Quantum Hall Effect on Linear and Nonlinear Conductivity in the FISDW States of the Organic Conductor (TMTSF)_2PF_6
T. Vuletic, C. Pasquier, P. Auban-Senzier +4
We report a detailed characterization of quantum Hall effect (QHE) influence on the linear and non-linear resistivity tensor in FISDW phases of the organic conductor (TMTSF)2PF6. W…
spl(2,1) dynamical supersymmetry and suppression of ferromagnetism in flat band double-exchange models
Karlo Penc, Robert Lacaze
The low energy spectrum of the ferromagnetic Kondo lattice model on a N-site complete graph extended with on-site repulsion is obtained from the underlying spl(2,1) algebra propert…
A strong-coupling expansion for the Hubbard model
N. Dupuis, S. Pairault
We reconsider the strong-coupling expansion for the Hubbard model recently introduced by Sarker and Pairault {\it et al.} By introducing slave particles that act as projection oper…
Hall effect and inter-chain magneto-optical properties of coupled Luttinger liquids
Andrei Lopatin, Antoine Georges, T. Giamarchi
We consider the Hall effect in a system of weakly coupled Luttinger chains. We obtain the full conductivity tensor in the absence of dissipation along the chains. We show that whil…
rf susceptibility of La_{1-x}Sr_{x}MnO_{3} single crystals : magnetic signatures of structural changes
P. V. Parimi, H. Srikanth, M. Bailleul +4
A sensitive tunnel diode oscillator (TDO) operating at 4MHz is used to probe the dynamic response of La_{1-x}Sr_{x}MnO_{3} single crystals for x=0.125,0.175,0.28 and 0.33 doping. S…
Thermal conductivity and specific heat of the linear chain cuprate SrCuO: Evidence for thermal transport via spinons
A. V. Sologubenko, E. Felder, K. Gianno +3
We report measurements of the specific heat and the thermal conductivity of the model Heisenberg spin-1/2 chain cuprate SrCuO at low temperatures. In addition to a near…
Spinless fermions ladders at half filling
P. Donohue, M. Tsuchiizu, T. Giamarchi +1
We study a half filled ladder of spinless fermions. We show that contrarily to a single chain, the ladder becomes a Mott insulator for arbitrarily small repulsive interactions. We…
NMR properties of a one-dimesional Cu-O model
T. Becker, M. Gabay, T. Giamarchi
We obtain the Knight shifts and the relaxation rates related to the Fermi contact interaction term for a one-dimensional Cu-O model using bosonization technique. We consider the sm…
Reentrant spin glass behavior in a layered manganite La1.2Sr1.8Mn2O7 single crystals
S. H. Chun, Y. Lyanda-Geller, M. B. Salamon +3
We report here a detailed study of AC/DC magnetization and longitudinal/transverse transport properties of LaSrMnO single crystals below = 121 K…
Role of interchain hopping in two disordered chains of spinless fermions
E. Orignac, Y. Suzumura, T. Giamarchi
The effect of interchain hopping and interaction on Anderson localization has been investigated for two coupled chains of spinless fermions with nearest neighbor interaction. Using…
Commensurate-incommensurate transition in two-coupled chains of nearly half-filled electrons
M. Tsuchiizu, P. Donohue, Y. Suzumura +1
We investigate the physical properties of two coupled chains of electrons, with a nearly half-filled band, as a function of the interchain hopping t_\perp and the doping. We show t…
Charge Ordering and Spin Dynamics in NaV2O5
B. Grenier, O. Cepas, L. P. Regnault +7
We report high-resolution neutron inelastic scattering experiments on the spin excitations of NaV2O5. Below Tc, two branches associated with distinct energy gaps are identified. Fr…
A Study of Quantum Many-Body Systems With Nearest And Next-to-Nearest Neighbour Long-Range Interactions
Meripeni Ezung, N. Gurappa, Avinash Khare +1
The scattering and bound states of the many-body systems, related to the short-range Dyson model, are studied. First, we show that the scattering states can be realized as coherent…
Topological Character of Excitations in Strongly Correlated Electronic Systems: Confinement and Dimensional Crossover
S. Brazovski
Topologically nontrivial states are common in symmetry broken phases at macroscopic scales. Low dimensional systems bring them to a microscopic level where solitons emerge as singl…
Interaction induced delocalisation for two particles in a periodic potential
J. Vidal, B. Doucot, R. Mosseri +1
We consider two interacting particles evolving in a one-dimensional periodic structure embedded in a magnetic field. We show that the strong localization induced by the magnetic fi…
Optical Studies of a Layered Manganite La_{1.2}Sr_{1.8}Mn_2O_7 : Polaron Correlation Effect
H. J. Lee, K. H. Kim, J. H. Jung +4
Optical conductivity spectra of a cleaved ab-plane of a La_{1.2}Sr_{1.8}Mn_2O_7 single crystal exhibit a small polaron absorption band in the mid-infrared region at overall tempera…
Mott transition, antiferromagnetism, and unconventional superconductivity in layered organic superconductors
S. Lefebvre, P. Wzietek, S. Brown +5
The phase diagram of the layered organic superconductor -(ET)Cu[N(CN)]Cl has been accurately measured from a combination of H NMR and AC susceptibility techniq…
Topological Defects in Spin Density Waves
N. Kirova, S. Brazovskii
The rich order parameter of Spin Density Waves allows for unusual object of a complex topological nature: a half-integer dislocation combined with a semi-vortex of a staggered magn…
Ga NMR study of the local susceptibility in SrCr8Ga4O19: pseudogap and paramagnetic defects
P. Mendels, A. Keren, L. Limot +3
We present the first Ga(4f) NMR study of the Cr susceptibility in the archetype of Kagome based frustrated antiferromagnets, SrCrGaO. Our major finding is that t…
Coherence scale of the Kondo lattice
S. Burdin, A. Georges, D. R. Grempel
It is shown that the large-N approach yields two energy scales for the Kondo lattice model. The single-impurity Kondo temperature, , signals the onset of local singlet formati…
Magnetic dilution in the geometrically frustrated SrCrGaO and the role of local dynamics: a SR study
A. Keren, Y. J. Uemura, G. Luke +3
We investigate the spin dynamics of SrCrGaO for p below and above the percolation threshold p_c using muon spin relaxation. Our major findings are: (I) At T…
Anomalous metallicity and electronic phase separation in the CsC60 polymerized fulleride
Barbara Simovic, Denis Jerome, Laszlo Forro
133Cs and 13C-NMR have been used to study the electronic properties of the polymerized phase of CsC60 at ambient and under hydrostatic pressure. The salient result of this study is…