98 citations · 298 across the 15 of their papers we have counts for
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Even-odd effects in finite Heisenberg spin chains
Paolo Politi, Maria Gloria Pini
Magnetic superlattices and nanowires may be described as Heisenberg spin chains of finite length N, where N is the number of magnetic units (films or atoms, respectively). We study…
Comment on "Magnetism of Nanowires Driven by Novel Even-Odd Effects"
Paolo Politi, Maria Gloria Pini
In a recent Letter, S. Lounis et al. find that the ground state of finite antiferromagnetic nanowires deposited on ferromagnets depends on the parity of the number N of atoms and t…
Surface currents and slope selection in crystal growth
Paolo Politi
We face the problem to determine the slope dependent current during the epitaxial growth process of a crystal surface. This current is proportional to delta=(p+) + (p-), where (p+/…
Fluctuations and scaling in models for particle aggregation
Daniele Vilone, Claudio Castellano, Paolo Politi
We consider two sequential models of deposition and aggregation for particles. The first model (No Diffusion) simulates surface diffusion through a deterministic capture area, whil…
Nucleation and step-edge barriers always destabilize step-flow growth of a vicinal surface
Daniele Vilone, Claudio Castellano, Paolo Politi
We consider the effect of nucleation on a one-dimensional stepped surface, finding that step-flow growth is metastable for any strength of the additional step-edge barrier. The sur…
Simultaneous existence of two spin-wave modes in ultrathin Fe/GaAs(001) films studied by Brillouin Light Scattering: experiment and theory
M. G. Pini, P. Politi, A. Rettori +4
A double-peaked structure was observed in the {\it in-situ} Brillouin Light Scattering (BLS) spectra of a 6 Å thick epitaxial Fe/GaAs(001) film for values of an external magneti…