Probing the Electronic Structure of Complex Systems by ARPES

By A. Damascelli. 2003

406 citations recorded by the source corpus.

Angle-resolved photoemission spectroscopy (ARPES) is one of the most direct methods of studying the electronic structure of solids. By measuring the kinetic energy and angular distribution of the electrons photoemitted from a sample illuminated with sufficiently high-energy radiation, one can gain information on both the energy and momentum of the electrons propagating inside a material. This is of vital importance in elucidating the connection between electronic, magnetic, and chemical structure of solids, in particular for those complex systems which cannot be appropriately described within the independent-particle picture. The last decade witnessed significant progress in this technique and its applications, thus ushering in a new era in photoelectron spectroscopy; today, ARPES experiments with 2 meV energy resolution and 0.2° angular resolution are a reality even for photoemission on solids. In this paper we will review the fundamentals of the technique and present some illustrative experimental results; we will show how ARPES can probe the momentum-dependent electronic structure of solids providing detailed information on band dispersion and Fermi surface as well as on the strength and nature of many-body correlations, which may profoundly affect the one-electron excitation spectrum and in turn the macroscopic physical properties.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry, Surfaces, Coatings and Films

View Paper: https://www.semanticscholar.org/paper/a6271394183c3b3d2d062a51693b59f5b474fe38

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In Atomic and Molecular Physics, and Optics

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Citations in the corpus

Electronic properties of graphene in a strong magnetic field (2010, background): “…linearised version (40) in each valley for undeformed graphene. observe the effect, e.g. in angle-resolved photoemission spectroscopy (ARPES) measurements (Damascelli, 2004) that have been successfully applied to epitaxial graphene (Bostwick et al., 2007) and graphitic samples (Zhou et al., 2006).”
Production and processing of graphene and related materials (2020, background): “Due to the confinement of the electronic wavefunctions in the (x,y) plane, the band structure of 2d materials can be fully determined through angle-resolved photoemission spectroscopy (ARPES) [1368-1370].”
Observation of pseudogap behaviour in a strongly interacting Fermi gas (2010, background): “In unconventional superconductors, such as high- T c superconductors, this back-bending in the dispersion has been observed both belo”