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Title: Resonant inelastic x-ray scattering of CeB[subscript 6] at the Ce L[subscript 1]- and L[subscript 3]-edges

Abstract

We report a resonant inelastic x-ray scattering (RIXS) study of crystalline CeB{sub 6}. Ce L{sub {alpha}1,2} RIXS was measured with excitation energies resonant with the Ce L{sub 3}-edge. A lifetime-broadening suppressed x-ray absorption near-edge structure (LBS-XANES), which successfully reproduced the L{sub {alpha}1,2} RIXS spectra over wide ranges of excitation and emission energies, was simulated using the SIM-RIXS program. A pre-edge structure in the LBS-XANES can be resolved, and many-body effects were suggested in the L{sub {alpha}1,2} RIXS around the Ce L{sub 3}-edge energy. No convincing signs of Ce (II) or Ce (IV) states were observed in the LBS-XANES. Ce L{sub {gamma}4} RIXS was measured at 302 K and 28 K with excitation energies across the Ce L{sub 1}-edge. The interactions of p-valence electrons between Ce and B{sub 6} were found to be considerably small, regardless of temperature. Thus, the electronic state of CeB{sub 6} was concluded to be suitably described as a nominally Ce(4f{sup 1}){sup 3+}(e{sup -})(B{sub 6}){sup 2-} system with some hybridization among all valence orbitals of Ce and B.

Authors:
; ; ; ; ; ; ;  [1];  [2];  [2];  [2]
  1. (JWU)
  2. (
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
FOREIGN
OSTI Identifier:
1043719
Resource Type:
Journal Article
Journal Name:
J. Chem. Phys.
Additional Journal Information:
Journal Volume: 136; Journal Issue: (19) ; 05, 2012; Journal ID: ISSN 0021-9606
Country of Publication:
United States
Language:
ENGLISH
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION; CERIUM COMPOUNDS; ELECTRONS; EXCITATION; EXCITED STATES; HYBRIDIZATION; INELASTIC SCATTERING; SPECTRA; VALENCE

Citation Formats

Liu, Lijia, Sham, Tsun-Kong, Hayashi, Hisashi, Kanai, Noriko, Takehara, Yuki, Kawamura, Naomi, Mizumaki, Masaichiro, Gordon, Robert A., SP8), UWO), and Simon). Resonant inelastic x-ray scattering of CeB[subscript 6] at the Ce L[subscript 1]- and L[subscript 3]-edges. United States: N. p., 2012. Web. doi:10.1063/1.4716180.
Liu, Lijia, Sham, Tsun-Kong, Hayashi, Hisashi, Kanai, Noriko, Takehara, Yuki, Kawamura, Naomi, Mizumaki, Masaichiro, Gordon, Robert A., SP8), UWO), & Simon). Resonant inelastic x-ray scattering of CeB[subscript 6] at the Ce L[subscript 1]- and L[subscript 3]-edges. United States. doi:10.1063/1.4716180.
Liu, Lijia, Sham, Tsun-Kong, Hayashi, Hisashi, Kanai, Noriko, Takehara, Yuki, Kawamura, Naomi, Mizumaki, Masaichiro, Gordon, Robert A., SP8), UWO), and Simon). Thu . "Resonant inelastic x-ray scattering of CeB[subscript 6] at the Ce L[subscript 1]- and L[subscript 3]-edges". United States. doi:10.1063/1.4716180.
@article{osti_1043719,
title = {Resonant inelastic x-ray scattering of CeB[subscript 6] at the Ce L[subscript 1]- and L[subscript 3]-edges},
author = {Liu, Lijia and Sham, Tsun-Kong and Hayashi, Hisashi and Kanai, Noriko and Takehara, Yuki and Kawamura, Naomi and Mizumaki, Masaichiro and Gordon, Robert A. and SP8) and UWO) and Simon)},
abstractNote = {We report a resonant inelastic x-ray scattering (RIXS) study of crystalline CeB{sub 6}. Ce L{sub {alpha}1,2} RIXS was measured with excitation energies resonant with the Ce L{sub 3}-edge. A lifetime-broadening suppressed x-ray absorption near-edge structure (LBS-XANES), which successfully reproduced the L{sub {alpha}1,2} RIXS spectra over wide ranges of excitation and emission energies, was simulated using the SIM-RIXS program. A pre-edge structure in the LBS-XANES can be resolved, and many-body effects were suggested in the L{sub {alpha}1,2} RIXS around the Ce L{sub 3}-edge energy. No convincing signs of Ce (II) or Ce (IV) states were observed in the LBS-XANES. Ce L{sub {gamma}4} RIXS was measured at 302 K and 28 K with excitation energies across the Ce L{sub 1}-edge. The interactions of p-valence electrons between Ce and B{sub 6} were found to be considerably small, regardless of temperature. Thus, the electronic state of CeB{sub 6} was concluded to be suitably described as a nominally Ce(4f{sup 1}){sup 3+}(e{sup -})(B{sub 6}){sup 2-} system with some hybridization among all valence orbitals of Ce and B.},
doi = {10.1063/1.4716180},
journal = {J. Chem. Phys.},
issn = {0021-9606},
number = (19) ; 05, 2012,
volume = 136,
place = {United States},
year = {2012},
month = {11}
}