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Title: Evidence of dynamical spin shielding in Ce from spin-resolved photoelectron spectroscopy

Abstract

Using Fano effect measurements upon polycrystalline Ce, we have observed a phase reversal between the spectral structure at the Fermi edge and the other 4f derived feature near a binding energy of 2 eV. The Fano effect is the observation of spin polarized photoelectron emission from nonmagnetic materials, under chirally selective excitation, such as circularly polarized photons. The observation of phase reversal between the two peaks is a direct experimental proof of Kondo shielding in Ce, confirming the predictions of Gunnarsson and Shoenhammer, albeit with a small modification.

Authors:
; ; ; ; ;  [1]
  1. UMR-MUST
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE
OSTI Identifier:
1007581
Resource Type:
Journal Article
Journal Name:
Europhys. Lett.
Additional Journal Information:
Journal Volume: 77; Journal Issue: 2007; Journal ID: ISSN 0295-5075
Country of Publication:
United States
Language:
ENGLISH
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BINDING ENERGY; EXCITATION; PHOTOELECTRON SPECTROSCOPY; PHOTONS; SHIELDING; SPIN

Citation Formats

Tobin, J G, Yu, S W, Komesu, T, Chung, B W, Morton, S A, Waddill, G D, and LLNL). Evidence of dynamical spin shielding in Ce from spin-resolved photoelectron spectroscopy. United States: N. p., 2008. Web. doi:10.1209/0295-5075/77/17004.
Tobin, J G, Yu, S W, Komesu, T, Chung, B W, Morton, S A, Waddill, G D, & LLNL). Evidence of dynamical spin shielding in Ce from spin-resolved photoelectron spectroscopy. United States. https://doi.org/10.1209/0295-5075/77/17004
Tobin, J G, Yu, S W, Komesu, T, Chung, B W, Morton, S A, Waddill, G D, and LLNL). 2008. "Evidence of dynamical spin shielding in Ce from spin-resolved photoelectron spectroscopy". United States. https://doi.org/10.1209/0295-5075/77/17004.
@article{osti_1007581,
title = {Evidence of dynamical spin shielding in Ce from spin-resolved photoelectron spectroscopy},
author = {Tobin, J G and Yu, S W and Komesu, T and Chung, B W and Morton, S A and Waddill, G D and LLNL)},
abstractNote = {Using Fano effect measurements upon polycrystalline Ce, we have observed a phase reversal between the spectral structure at the Fermi edge and the other 4f derived feature near a binding energy of 2 eV. The Fano effect is the observation of spin polarized photoelectron emission from nonmagnetic materials, under chirally selective excitation, such as circularly polarized photons. The observation of phase reversal between the two peaks is a direct experimental proof of Kondo shielding in Ce, confirming the predictions of Gunnarsson and Shoenhammer, albeit with a small modification.},
doi = {10.1209/0295-5075/77/17004},
url = {https://www.osti.gov/biblio/1007581}, journal = {Europhys. Lett.},
issn = {0295-5075},
number = 2007,
volume = 77,
place = {United States},
year = {Thu Oct 30 00:00:00 EDT 2008},
month = {Thu Oct 30 00:00:00 EDT 2008}
}