MAGNETIC CIRCULAR-DICHROISM AND ORBITAL MOMENTUM COUPLING IN 4D PHOTOEMISSION FROM GD(0001)

Authors
VANDERLAAN G ARENHOLZ E NAVAS E BAUER A KAINDL G
Citation
G. Vanderlaan et al., MAGNETIC CIRCULAR-DICHROISM AND ORBITAL MOMENTUM COUPLING IN 4D PHOTOEMISSION FROM GD(0001), Physical review. B, Condensed matter, 53(10), 1996, pp. 5998-6001
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
53
Issue
10
Year of publication
1996
Pages
5998 - 6001
Database
ISI
SICI code
0163-1829(1996)53:10<5998:MCAOMC>2.0.ZU;2-L
Abstract
Strong magnetic circular dichroism (MCD) has been observed in 4d core- level photoemission (PE) from magnetized Gd(0001) metal, in agreement with an atomic many-particle description. This solves a longstanding c ontroversy on the correct interpretation of the 4d PE spectrum of Gd. We show that MCD depends on the spin and orbital-momentum coupling in the final state, leading to MCD effects of opposite sign for high and low total angular momenta, respectively. The spin of the excited state can be assigned from MCD, and we discuss its role in the lifetime bro adening of PE peaks.