First-Principles Estimation of Core Level Shifts for Hf, Ta, W, and Re

Autor: Daniel Wolverson, Benjamin Smith, Enrico Da Como, Charles Sayers, Gary Wan, Luca Pasquali, Mattia Cattelan
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Popis: A simple first-principles approach is used to estimate the core level shifts observed in X-ray photoelectron spectroscopy for the 4f electrons of Hf, Ta, W, and Re; these elements were selected because their 4f levels are relatively close to the Fermi energy. The approach is first tested by modeling the surface core level shifts of low-index surfaces of the four elemental metals, followed by its application to the well-studied material TaSe
Databáze: OpenAIRE