Temperature-dependent 1s2p resonant inelastic X-ray scattering of CoO

Reshmi Kurian, Matti M. Van Schooneveld, Z. Németh, G. Vankó, Frank M F De Groot

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The temperature-dependent 1s2p resonant inelastic X-ray scattering (RIXS) spectra of CoO have been measured with 0.3 eV overall resolution, and the RIXS planes have been analyzed with multiplet calculations. The analysis of the high-resolution 1s2p RIXS plane allows a more detailed determination of the ground-state electronic structure, as compared to 1s X-ray absorption spectroscopy (XAS). The apparent absence of interference effects suggests that the lifetime broadening of the pre-edge states is (significantly) reduced from the edge lifetime broadening. The temperature-dependent RIXS planes are explained as a combination of the ground state and first excited state due to thermal population of the excited state, which are a result of the symmetry distortion, 3d spin-orbit coupling, and magnetic exchange interactions. No features due to charge transfer and nonlocal transitions are observed due to the relatively small cobalt-oxygen overlap as compared to higher valent systems. The successful determination of the spin state and crystal field parameters using hard X-ray experiments promises to make 1s2p RIXS a useful technique for in situ transition metal oxide studies.

Original languageEnglish
Pages (from-to)2976-2981
Number of pages6
JournalJournal of Physical Chemistry C
Volume117
Issue number6
DOIs
Publication statusPublished - Feb 14 2013

Fingerprint

Inelastic scattering
X ray scattering
scattering
x rays
Excited states
Ground state
Temperature
temperature
X ray absorption spectroscopy
Exchange interactions
Cobalt
Oxides
life (durability)
Electronic structure
Transition metals
Charge transfer
ground state
Orbits
Oxygen
excitation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Temperature-dependent 1s2p resonant inelastic X-ray scattering of CoO. / Kurian, Reshmi; Van Schooneveld, Matti M.; Németh, Z.; Vankó, G.; De Groot, Frank M F.

In: Journal of Physical Chemistry C, Vol. 117, No. 6, 14.02.2013, p. 2976-2981.

Research output: Contribution to journalArticle

Kurian, Reshmi ; Van Schooneveld, Matti M. ; Németh, Z. ; Vankó, G. ; De Groot, Frank M F. / Temperature-dependent 1s2p resonant inelastic X-ray scattering of CoO. In: Journal of Physical Chemistry C. 2013 ; Vol. 117, No. 6. pp. 2976-2981.
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