RT-EOM-CCSD Calculations of Inner and Outer Valence Ionization Energies and Spectral Functions
Fernando D Vila1, John J Rehr1, Karol Kowalski2
1Department of Physics, University of Washington, Seattle, Washington 98195, United States.
Abstract:
Photoelectron spectroscopy (PES) is a standard experimental method for material characterization, but its interpretation can be hampered by its reliance on standard materials. To facilitate the study of unknown systems, theoretical methods are desirable. Here, we present a real-time equation-of-motion coupled cluster (RT-EOM-CC) approach for valence PES, extending our core-level development. We demonstrate that RT-EOM-CC yields ionization energies and spectral functions in good agreement with experimental and CI-based results, even for some more correlated cases.
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