EXACT MANY-BODY APPROACH TO MAGNETISM AND CLUSTER STRUCTURE

Authors
PASTOR GM HIRSCH R MUHLSCHLEGEL B
Citation
Gm. Pastor et al., EXACT MANY-BODY APPROACH TO MAGNETISM AND CLUSTER STRUCTURE, Surface review and letters, 3(1), 1996, pp. 447-451
Citations number
28
Categorie Soggetti
Physics, Condensed Matter","Physics, Atomic, Molecular & Chemical","Material Science
Journal title
Surface review and letters → ACNP
ISSN journal
0218625X
Volume
3
Issue
1
Year of publication
1996
Pages
447 - 451
Database
ISI
SICI code
0218-625X(1996)3:1<447:EMATMA>2.0.ZU;2-7
Abstract
The magnetic and structural properties of small clusters having N less than or equal to rigorously in the framework of the Hubbard model by performing the exact many-body electronic calculations together with a complete geometry optimization. We discuss the resulting interplay be tween electron correlations, magnetism, and cluster structure at T = 0 , as well as the stability of cluster ferromagnetism against temperatu re-induced electronic excitation and structural changes.