327 citations · 2.4k across the 62 of their papers we have counts for
21 papers · 1 filter
Signatures of electronic correlations and spin-susceptibility anisotropy in nuclear magnetic resonance
Stephen Carr, Charles Snider, D. E. Feldman +3
We present a methodology for probing the details of electronic susceptibility through minimally-invasive nuclear magnetic resonance techniques. Specifically, we classify electron-m…
Rectification by Doped Mott-Insulator Junctions
Florian C. Sabou, Natalie Bodington, J. B. Marston
Junctions of doped Mott insulators offer a route to rectification at frequencies beyond the terahertz range. Mott insulators have strong electronic correlations and therefore short…
Nature of the low energy excitations in the short range ordered region of CsCuCl as revealed by Cs NMR
M. -A. Vachon, G. Koutroulakis, V. F. Mitrović +6
We report nuclear magnetic resonance measurements of the spin-1/2 anisotropic triangular lattice antiferromagnet CsCuCl as a function of temperature and applied magnetic fi…
Strong Correlations in Actinide Redox Reactions
S. E. Horowitz, J. B. Marston
Reduction-oxidation (redox) reactions of the redox couples An(VI)/An(V), An(V)/An(IV), and An(IV)/An(III), where An is an element in the family of early actinides (U, Np, and Pu),…
Weak Ferromagnetic Exchange and Anomalous Specific Heat in ZnCu3(OH)6Cl2
Ookie Ma, J. B. Marston
Experimental evidence for a plethora of low energy spin excitations in the spin-1/2 kagome antiferromagnet ZnCu3(OH)6Cl2 may be understandable in terms of an extended Fermi surface…
Transport anomalies in a simplified model for a heavy electron quantum critical point
P. Coleman, J. B. Marston, A. J. Schofield
We discuss the transport anomalies associated with the development of heavy electrons out of a neutral spin fluid using the large-N treatment of the Kondo-Heisenberg lattice model.…
Phase diagram of the three band half-filled Cu-O two-leg ladder
S. Lee, J. B. Marston, J. O. Fjaerestad
We determine the phase diagram of the half-filled two-leg ladder both at weak and strong coupling, taking into account the Cu d_{x^2-y^2} and the O p_x and p_y orbitals. At weak co…
Orbital currents and charge density waves in a generalized Hubbard ladder
J. O. Fjaerestad, J. B. Marston, U. Schollwoeck
We study a generalized Hubbard model on the two-leg ladder at zero temperature, focusing on a parameter region with staggered flux (SF)/d-density wave (DDW) order. To guide our num…
Broken time-reversal symmetry in strongly correlated ladder structures
U. Schollwoeck, Sudip Chakravarty, J. O. Fjaerestad +2
We provide, for the first time, in a doped strongly correlated system (two-leg ladder), a controlled theoretical demonstration of the existence of a state in which long-range order…
Violation of the Wiedemann-Franz Law in a Large-N Solution of the t-J Model
A. Houghton, S. Lee, J. B. Marston
We show that the Wiedemann-Franz law, which holds for Landau Fermi liquids, breaks down in a large-n treatment of the t-J model. The calculated ratio of the in-plane thermal and el…
Staggered Flux Phase in a Model of Strongly Correlated Electrons
J. B. Marston, J. O. Fjaerestad, Asle Sudbo
We present numerical evidence for the existence of a staggered flux (SF) phase in the half-filled two-leg t-U-V-J ladder, with true long-range order in the counter-circulating curr…
Staggered orbital currents in the half-filled two-leg ladder
J. O. Fjaerestad, J. B. Marston
Using Abelian bosonization with a careful treatment of the Klein factors, we show that a certain phase of the half-filled two-leg ladder, previously identified as having spin-Peier…
Quantum Phases of the Shastry-Sutherland Antiferromagnet
C. H. Chung, J. B. Marston, Subir Sachdev
We study possible paramagnetic phases of antiferromagnets on the Shastry-Sutherland lattice by a gauge-theoretic analysis of fluctuations in a theory with Sp(2N) symmetry. In addit…
Staggered Orbital Currents in a Model of Strongly Correlated Electrons
J. B. Marston, A. Sudbo
This preprint has been withdrawn, as the evidence for persistent currents found with the "infinite-size" DMRG algorithm has not been reproduced with the (presumably more accurate)…
Charge ordering and antiferromagnetic exchange in layered molecular crystals of the theta type
Ross H. McKenzie, J. Merino, J. B. Marston +1
We consider the electronic properties of layered molecular crystals of the type theta-DA, where A is an anion and D is a donor molecule such as BEDT-TTF [where BEDT-TTF is bis-…
Large-N solutions of the Heisenberg and Hubbard-Heisenberg models on the anisotropic triangular lattice: application to CsCuCl and to the layered organic superconductors -(BEDT-TTF)X
C. H. Chung, J. B. Marston, Ross H. McKenzie
We solve the Sp(N) Heisenberg and SU(N) Hubbard-Heisenberg models on the anisotropic triangular lattice in the large-N limit. These two models may describe respectively the magneti…
Density-Matrix Renormalization-Group Analysis of Quantum Critical Points: I. Quantum Spin Chains
Shan-Wen Tsai, J. B. Marston
We present a simple method, combining the density-matrix renormalization-group (DMRG) algorithm with finite-size scaling, which permits the study of critical behavior in quantum sp…
Consilience of High-Tc Theories
J. B. Marston
Improvements both in the quality and in the variety of experiments on high-temperature superconductors have yielded new insights into the microscopic origins of pairing. A number o…
The Heisenberg antiferromagnet on an anisotropic triangular lattice: linear spin-wave theory
J. Merino, Ross H. McKenzie, J. B. Marston +1
We consider the effect of quantum spin fluctuations on the ground state properties of the Heisenberg antiferromagnet on an anisotropic triangular lattice using linear spin-wave the…
Multidimensional Bosonization
A. Houghton, H. -J. Kwon, J. B. Marston
Bosonization of degenerate fermions yields insight both into Landau Fermi liquids, and into non-Fermi liquids. We begin our review with a pedagogical introduction to bosonization,…
Room Temperature Kondo effect in atom-surface scattering: dynamical 1/N approach
J. Merino, J. B. Marston
The Kondo effect may be observable in some atom-surface scattering experiments, in particular, those involving alkaline-earth atoms. By combining Keldysh techniques with the NCA ap…