Journal article
Noncollinear magnetism, spin frustration, and magnetic nanodomains in small Mn-n clusters
Publication Details
Authors: | Garcia, M. |
Publication year: | 2006 |
Journal: | Physical Review B |
Pages range : | 140405 (R) |
Journal acronym: | Phys. Rev. |
Volume number: | 74 |
ISSN: | 1098-0121 |
Abstract
We propose a theoretical explanation for the puzzling size dependence of the magnetic properties of Mn-n clusters. Our approach combines noncollinear ab initio calculations and effective spin Hamiltonians. We show that a remarkable interplay between different magnetic couplings, which is already present in the dimer, leads to a complex size-dependent magnetic behavior, dominated by noncollinear magnetism, frustration, and small cluster magnetic moments. Our results are in good agreement with experiment.
We propose a theoretical explanation for the puzzling size dependence of the magnetic properties of Mn-n clusters. Our approach combines noncollinear ab initio calculations and effective spin Hamiltonians. We show that a remarkable interplay between different magnetic couplings, which is already present in the dimer, leads to a complex size-dependent magnetic behavior, dominated by noncollinear magnetism, frustration, and small cluster magnetic moments. Our results are in good agreement with experiment.
