University of Illinois Urbana-Champaign

Probing the effects of electron correlation: the not-so-simple case of gd2o

Mason, Jarrett

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4467.pdf

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https://hdl.handle.net/2142/107392

Description

Title
Probing the effects of electron correlation: the not-so-simple case of gd2o
Author(s)
Mason, Jarrett
Contributor(s)
  • Chick Jarrold, Caroline
  • Huizenga, Caleb D.
  • McMahon, Abbey
Issue Date
2020-06-25
Keyword(s)
  • Perturbations
  • Resonances
  • *-Teller
Date of Ingest
2020-06-26T03:04:17Z
Abstract
Understanding the nuances of electron correlation is a central challenge to the development and practical implementation of strongly correlated electronic materials with applications spanning from spintronics to single molecule magnets and beyond. Electron correlation is also important in governing photodetachment and photoionization processes; previously reported photoelectron spectra of small samarium suboxide cluster anions revealed an increase in excited state band intensities with decreasing photon energies, opposite of what is expected to arise from threshold effects. This phenomenon has been attributed to strong photoelectron-valence electron interactions, facilitated by the high density of accessible electronic states in narrow energy windows for these clusters. Similar behavior is observed for the \chem{Gd_2O} triatomic anion, despite the anticipation of a simpler electronic structure from the half-filled 4f subshell on each Gd center. Herein, the anion photoelectron spectra of \chem{Gd_2O} were collected with photon energies in the range of 2.033 to 3.495 eV, and various explanations for this interesting behavior are explored.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
Text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/107392
Copyright and License Information
Copyright 2020 is held by the Author(s)

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Abstracts & Presentations - 2020 International Symposium on Molecular Spectroscopy PRIMARY