Spectral statistics on itinerant magnetism in nanoscale metallic grains

Authors
Citation
Lj. Zou et Qq. Zheng, Spectral statistics on itinerant magnetism in nanoscale metallic grains, PHYSICA B, 279(1-3), 2000, pp. 188-190
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
279
Issue
1-3
Year of publication
2000
Pages
188 - 190
Database
ISI
SICI code
0921-4526(200004)279:1-3<188:SSOIMI>2.0.ZU;2-3
Abstract
Effect of the spectral statistics and level correlation on the itinerant fe rromagnetism (FM in nanoscale metallic grains is presented. The magnetizati on and spin susceptibility at zero temperature depend only on the spin spli tting and the average level spacing. The Stoner criterion implies that the Coulomb interaction is greater than the Fermi energy for the appearance of FM long-range order. The spin wave excitation is found to be different from that of translation-invariant lattice. (C) 2000 Elsevier Science B.V. All rights reserved.