Electronic structure of cobalt phthalocyanine studied by resonant photoemission: Localization of Co-related valence band states

AbstractSynchrotron radiation has been used to perform resonant photoemission measurements across the 3p→3d photoabsorption threshold from cleaved FexO (x ≃0.945), Fe3O4, and α-Fe2O3 single crystal surfaces. The resonant enhancement of the Fe 3d photoelectrons allows the Fe 3d-derived final states in the valence band to be distinguished from the overlapping O 2p states. Using well-characterized single crystals, the distributions of Fe 3d-derived states associated with the ferrous (Fe2+) and ferric (Fe3+) cations have been identified. The Fe 3d-derived states are found to extend about 18 eV below the Fermi level in each oxide, which can be attributed to a significant amount of hybridization between the Fe 3d and O 2p orbitals.

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Valence band resonant photoemission spectroscopy on Ce compounds at Ce 3d-4f and 4d-4f thresholds: surface vs. bulk electronic structure

Physica B Condensed Matter ◽

10.1016/0921-4526(94)00371-2 ◽

1995 ◽

Vol 206-207 ◽

pp. 80-82 ◽

Cited By ~ 4

Author(s):

G. Chiaia ◽

L. Braicovich ◽

L. Duo ◽

P. Vavassori ◽

G.L. Olcese ◽

...

Keyword(s):

Electronic Structure ◽

Valence Band ◽

Photoemission Spectroscopy ◽

Resonant Photoemission

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Surface electronic structure of CeCo2, CeRh2 and CeRh3 probed by valence band resonant photoemission spectroscopy

Surface Science ◽

10.1016/0039-6028(95)00273-1 ◽

1995 ◽

Vol 331-333 ◽

pp. 1229-1232 ◽

Cited By ~ 13

Author(s):

G. Chiaia ◽

P. Vavassori ◽

L. Duò ◽

L. Braicovich ◽

M. Qvarford ◽

...

Keyword(s):

Electronic Structure ◽

Valence Band ◽

Photoemission Spectroscopy ◽

Resonant Photoemission ◽

Surface Electronic Structure

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Attosecond intra-valence band dynamics and resonant-photoemission delays in W(110)

Nature Communications ◽

10.1038/s41467-021-23650-7 ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

S. Heinrich ◽

T. Saule ◽

M. Högner ◽

Y. Cui ◽

V. S. Yakovlev ◽

...

Keyword(s):

Valence Band ◽

Photoelectron Spectroscopy ◽

Electronic Band Structure ◽

Photoelectric Effect ◽

Final State ◽

Electronic Band ◽

Time Resolved ◽

Resonant Photoemission ◽

Pulse Trains ◽

Electron Correlation Effects

AbstractTime-resolved photoelectron spectroscopy with attosecond precision provides new insights into the photoelectric effect and gives information about the timing of photoemission from different electronic states within the electronic band structure of solids. Electron transport, scattering phenomena and electron-electron correlation effects can be observed on attosecond time scales by timing photoemission from valence band states against that from core states. However, accessing intraband effects was so far particularly challenging due to the simultaneous requirements on energy, momentum and time resolution. Here we report on an experiment utilizing intracavity generated attosecond pulse trains to meet these demands at high flux and high photon energies to measure intraband delays between sp- and d-band states in the valence band photoemission from tungsten and investigate final-state effects in resonant photoemission.

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