455 citations · 717 across the 7 of their papers we have counts for
7 papers
One-Particle Spectral Properties of 1D Mott-Hubbard Insulators
J. M. P. Carmelo, J. M. E. Guerra, J. M. B. Lopes dos Santos +1
We use an exact {\it holon} and {\it spinon} Landau-liquid functional which describes the holon - spinon interactions at all scattering orders, to study correlation functions of in…
Effective Field Theory for Layered Quantum Antiferromagnets with Non-Magnetic Impurities
Y. C. Chen, A. H. Castro Neto
We propose an effective two-dimensional quantum non-linear sigma model combined with classical percolation theory to study the magnetic properties of site diluted layered quantum a…
Mobility of Bloch Walls via the Collective Coordinate Method
M. A. Despósito, A. Villares Ferrer, A. O. Caldeira +1
We have studied the problem of the dissipative motion of Bloch walls considering a totally anisotropic one dimensional spin chain in the presence of a magnetic field. Using the so-…
Evidence for a common physical description of non-Fermi-liquid behavior in f-electron systems
M. C. de Andrade, R. Chau, R. P. Dickey +8
The non-Fermi-liquid (NFL) behavior observed in the low temperature specific heat and magnetic susceptibility of f-electron systems is analyzed within the context of…
Non-Fermi liquid behavior and Griffiths phase in {\it f}-electron compounds
A. H. Castro Neto, G. Castilla, B. A. Jones
We study the interplay among disorder, RKKY and Kondo interactions in {\it f}-electron alloys. We argue that the non-Fermi liquid behavior observed in these systems is due to the e…
Open Luttinger liquids
A. H. Castro Neto, C. de C. Chamon, C. Nayak
We study the problem of Luttinger liquids interacting with an active environment. We are particularly interested in how dissipation affects the response and correlation functions o…
Landau level bosonization of a 2D electron gas
H. Westfahl, A. H. Castro Neto, A. O. Caldeira
In this work we introduce a bosonization scheme for the low energy excitations of a 2D interacting electron gas in the presence of an uniform magnetic field under conditions where…