EXPERIMENTAL AND MODEL THEORETICAL DISPERSIONS OF UNOCCUPIED METALLICQUANTUM-WELL STATES IN THE CU FCCCO/CU(100) SYSTEM/

Authors
CURTI FG DANESE A BARTYNSKI RA
Citation
Fg. Curti et al., EXPERIMENTAL AND MODEL THEORETICAL DISPERSIONS OF UNOCCUPIED METALLICQUANTUM-WELL STATES IN THE CU FCCCO/CU(100) SYSTEM/, Physical review letters, 80(10), 1998, pp. 2213-2216
Citations number
32
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
80
Issue
10
Year of publication
1998
Pages
2213 - 2216
Database
ISI
SICI code
0031-9007(1998)80:10<2213:EAMTDO>2.0.ZU;2-I
Abstract
The dispersion with parallel momentum of unoccupied metallic quantum w ell states in the Cu/fccCo/Cu(100) system has been measured using inve rse photoemission and modeled using a phase analysis approach. A flat band near the Fermi level is observed near the neck of the Cu Fermi su rface along the <(Gamma X)over bar> direction. Appearance of the state coincides with a hybridization gap in the minority spin bands of the underlying Co and its influence on the phase and strength of the short period magnetic coupling in this and similar systems is discussed.