Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.1k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.9k papers
- University of California, RiversideUS1.9k papers
- University of VirginiaUS1.8k papers
- Rice UniversityUS1.8k papers
- Fermi National Accelerator LaboratoryUS1.8k papers
- Princeton UniversityUS1.8k papers
- Charles UniversityCZ1.8k papers
- University of Maryland, College ParkUS1.7k papers
- Tata Institute of Fundamental ResearchIN1.7k papers
- University of Notre DameUS1.7k papers
18 papers · 2 filters
The RKKY interactions and the Mott Transition
G. Moeller, V. Dobrosavljevic, A. E. Ruckenstein
A two-site cluster generalization of the Hubbard model in large dimensions is examined in order to study the role of short-range spin correlations near the metal-insulator transiti…
Stripes and the t-J model
C. Stephen Hellberg, Efstratios Manousakis
We investigate the two-dimensional t-J model at a hole doping of x = 1/8 and J/t = 0.35 with exact diagonalization. The low-energy states are uniform (not striped). We find numerou…
Magnetic field independence of the spin gap in YBa_2Cu_3O_{7-delta}
K. Gorny, O. M. Vyaselev, J. A. Martindale +8
We report, for magnetic fields of 0, 8.8, and 14.8 Tesla, measurements of the temperature dependent ^{63}Cu NMR spin lattice relaxation rate for near optimally doped YBa_2Cu_3O_{7-…
Finite-size scaling for the S=1/2 Heisenberg Antiferromagnetic Chain
Victor Barzykin, Ian Affleck
Corrections to the asymptotic correlation function in a Heisenberg spin-1/2 antiferromagnetic spin chain are known to vanish slowly (logarithmically) as a function of the distance…
On the Origin of Quantum Oscillations in the Mixed State of Anisotropic Superconductor
Lev P. Gor`kov
For the vortex lattice in an anisotropic superconductor with well-separated cores (Hc1<<B<<Hc2) it is shown that sizable de Haas-van Alphen oscillations are caused by the levels` c…
Phase Separation in Models for Manganites: Theoretical Aspects and Comparison with Experiments
E. Dagotto, S. Yunoki, A. Moreo
This paper is an informal review of the present status of the computational studies of models for manganites that recently reported the existence of phase separation at low tempera…
Influence of Nearest-Neighbor Coulomb Interactions on the Phase Diagram of the Ferromagnetic Kondo Model
A. L. Malvezzi, S. Yunoki, E. Dagotto
The influence of a nearest-neighbor Coulomb repulsion of strength V on the properties of the Ferromagnetic Kondo model is analyzed using computational techniques. The Hamiltonian s…
Mobile anti-phase domains in lightly doped lanthanum cuprate
P. C. Hammel, B. J. Suh, J. L. Sarrao +1
Light hole doping of lanthanum cuprate strongly suppresses the onset of antiferromagnetic (AF) order. Surprisingly, it simultaneously suppresses the extrapolated zero temperature s…
Stripe Stability in the Extended t-J Model on Planes and Four-Leg Ladders
T. Tohyama, C. Gazza, C. T. Shih +4
The tendencies to phase-separation and stripe formation of the t-J model on planes and four-leg ladders have been here reexamined including hole hopping terms t', t'' beyond neares…
Mean-Field Theory for Spin Ladders Using Angular-Momentum Coupled Bases
J. Piekarewicz, J. R. Shepard
We study properties of two-leg Heisenberg spin ladders in a mean-field approximation using a variety of angular-momentum coupled bases. The mean-field theory proposed by Gopalan, R…
Localization effects in disordered Kondo lattices
E. Miranda, V. Dobrosavljevic
We investigate the role of localization effects in the Kondo disorder mechanism for non-Fermi liquid behavior in disordered Kondo lattices. We find that the distribution of Kondo t…
Lattice Distortions and Charge Carriers in Cuprates
Lev P. Gor'kov
A phenomenological model with itinerant bands and local states trapped by the lattice on the Cu-sites, is discussed to describe global features of cuprates. Relative energy positio…
Study of Spin and Charge Fluctuations in the U-t-t' Model
Charles Buhler, Adriana Moreo
As additional neutron scattering experiments are performed on a variety of high temperature superconducting compounds it appears that magnetic incommensuration is a phenomenon comm…
Phase Separation Induced by Orbital Degrees of Freedom in Models for Manganites with Jahn-Teller Phonons
S. Yunoki, A. Moreo, E. Dagotto
The two-orbital Kondo model with classical Jahn-Teller phonons is studied using Monte Carlo techniques. The observed phase diagram is rich, and includes a novel regime of phase sep…
Unified Quantum Mechanical Picture for Confined Spinons in Dimerized and Frustrated Spin S=1/2 Chains
Goetz S. Uhrig, Friedhelm Schoenfeld, Markus Laukamp +1
A quantum mechanical picture is presented to describe the behavior of confined spinons in a variety of S=1/2 chains. The confinement is due to dimerization and frustration and it m…
Perturbation Theory for Spin Ladders Using Angular-Momentum Coupled Bases
J. Piekarewicz, J. R. Shepard
We compute bulk properties of Heisenberg spin-1/2 ladders using Rayleigh-Schrödinger perturbation theory in the rung and plaquette bases. We formulate a method to extract high-orde…
Photoemission, inverse photoemission and superconducting correlations in Hubbard and t--J ladders: role of the anisotropy between legs and rungs
J. Riera, D. Poilblanc, E. Dagotto
Several experiments in the context of ladder materials have recently shown that the study of simple models of anisotropic ladders (i.e. with different couplings along legs and rung…
Suppression of Antiferromagnetic Order by Light Hole Doping in La_2Cu_{1-x}Li_xO_4: A ^{139}La NQR Study
B. J. Suh, Y. Yoshinari, J. D. Thompson +3
^{139}La nuclear quadrupole resonance measurements in lightly doped La_2Cu_{1-x}Li_xO_4 have been performed to reveal the dependence of the magnetic properties of the antiferromagn…