3 papers
cond-mat.mes-hall2003
Orbital and spin contributions to the -tensors in metal nanoparticles
A. Cehovin, C. M. Canali, A. H. MacDonald
We present a theoretical study of the mesoscopic fluctuations of -tensors in a metal nanoparticle. The calculations were performed using a semi-realistic tight-binding model, wh…
cond-mat.mes-hall2003
Elementary Excitations of Ferromagnetic Metal Nanoparticles
A. Cehovin, C. M. Canali, A. H. MacDonald
We present a theory of the elementary spin excitations in transition metal ferromagnet nanoparticles which achieves a unified and consistent quantum description of both collective…
cond-mat.mes-hall2003
Chern Numbers for Spin Models of Transition Metal Nanomagnets
C. M. Canali, A. Cehovin, A. H. MacDonald
We argue that ferromagnetic transition metal nanoparticles with fewer than approximately 100 atoms can be described by an effective Hamiltonian with a single giant spin degree of f…