Spin polarization and magnetic dichroism in photoemission from core and valence states in localized magnetic systems. IV. Core-hole polarization in resonant photoemission

1995 ◽  
Vol 52 (21) ◽  
pp. 15355-15363 ◽  
Author(s):  
Gerrit van der Laan ◽  
B. T. Thole
Keyword(s):  
Spin Polarization ◽  
Core Hole ◽  
Magnetic Systems ◽  
Resonant Photoemission ◽  
Valence States ◽  
Magnetic Dichroism

Magnetic Dichroism in Resonant Photoemission and Photoabsorption from Gd Metal

1997 ◽  
Vol 475 ◽  
Author(s):  
K. Starke ◽  
G. Van Der Laan ◽  
Z. Hu ◽  
E. Arenholz ◽  
E. Navas ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Giant Resonance ◽  
High Surface ◽  
Magnetic Systems ◽  
X Ray ◽  
Resonant Photoemission ◽  
Excitation Region ◽  
Magnetic Dichroism ◽  
Consistent Picture ◽  
X Ray Absorption

ABSTRACTWe report on the study of MCD in resonant PE, using Gd metal as an example. When the photon energy is changed across the Gd 4d → 4ƒ excitation region, the PE-MCD spectrum varies substantially. Based on atomic-multiplet theory, we present a consistent picture of MCD in resonant 4d → 4ƒ PE and x-ray absorption at the 4d-edge, where all spectral changes can be explained by the angular-momentum of the intermediate absorption state. The present analysis shows: when tuning to a specific line of the 4d x-ray absorption spectrum with a total angular momentum J', only the associate multiplet component is found to resonate. At the ‘giant resonance’, the shape of the MCD-PE signal closely resembles the off-resonance case; this finding is explained within atomic-multiplet theory allowing a straightforward use of MCD in 4d-resonant PE (i) for element-specific analysis of multicomponent magnetic systems with high surface sensitivity and (ii) for surface-domain imaging by PE microscopy.

Resonant-photoemission identification of the valence states of NiPS3

1984 ◽  
Vol 50 (3) ◽  
pp. 233-236 ◽  
Author(s):  
M.K. Kelly ◽  
R.R. Daniels ◽  
G. Margaritondo ◽  
F. Lévy
Keyword(s):  
Resonant Photoemission ◽  
Valence States
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