Giant cluster coexistence in doped manganites and other compounds
Phys Rev Lett
; 84(24): 5568-71, 2000 Jun 12.
Article
em En
| MEDLINE
| ID: mdl-10990996
ABSTRACT
Computational studies of models for manganese oxides show the generation of large coexisting metallic and insulating clusters with equal electronic density, in agreement with the recently discovered micrometer-sized inhomogeneities in manganites. The clusters are induced by disorder on exchange and hopping amplitudes near first-order transitions of the nondisordered strongly coupled system. The random-field Ising model illustrates the qualitative aspects of our results. Percolative characteristics are natural in this context. The conclusions are general and apply to a variety of compounds.
Buscar no Google
Base de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
/
Qualitative_research
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article