70 citations · 214 across the 14 of their papers we have counts for
14 papers
Quantum and classical correlations and Werner states in finite spin linear arrays
P. R. Wells, C. M. Chaves, J. A. e. Castro +1
Pairwise quantum correlations in the ground state of a N-spins antiferromagnetic chain described by the Heisenberg model with nearest neighbor exchange coupling are investigated. B…
Scaling relations for magnetic nanoparticles
P. Landeros, J. Escrig, D. Altbir +3
A detailed investigation of the scaling relations recently proposed by [J. d'Albuquerque e Castro, D. Altbir, J. C. Retamal, and P. Vargas, Phys. Rev. Lett. 88, 237202 (2002)] to s…
Magnetic behavior of nanoparticles in patterned thin films
J. Escrig, P. Landeros, J. C. Retamal +2
The magnetic behavior of truncated conical nanoparticles in patterned thin films is investigated as a function of their size and shape. Using a scaling technique, phase diagrams gi…
Model for spin coupling disorder effects on the susceptibility of antiferromagnetic nanochains
C. M. Chaves, Thereza Paiva, J. d'Albuquerque e Castro +1
The temperature dependence of the static magnetic susceptibility of exchange-disordered antiferromagnetic Heisenberg spin-1/2 finite chains with an odd number of spins is investiga…
Quantum Diffusion and Localization in Disordered Electronic Systems
P. R. Wells, J. d'Albuquerque e Castro, S. L. A. de Queiroz
The diffusion of electronic wave packets in one-dimensional systems with on-site, binary disorder is numerically investigated within the framework of a single-band tight-binding mo…
Stability of magnetic configurations in nanorings
P. Landeros, J. Escrig, D. Altbir +2
The relative stability of the vortex, onion and ferromagnetic phases in nanorings is examined as a function of the ring geometry. Total energy calculations are carried out analytic…