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

Mason, Jarrett

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

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

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

Language

eng

Permalink

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

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Copyright 2020 is held by the Author(s)

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