A Spin- and Momentum-Resolved Photoemission Study of Strong Electron Correlation in Co/Cu(001)

Long description: Electron correlation is an important phenomenon of solid-state physics, which is actively studied both by experimentalists for the rich material properties which result from it and by theoreticians which face a lot of open questions on the way to a succesful many-body description o...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Ellguth, Martin
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Berlin : Logos Verlag Berlin, 2015.
Temas:
Photoemission.
Ferromagnetism.
Electron configuration.
Photoémission.
Ferromagnétisme.
Électrons > Corrélation.
Electron configuration
Ferromagnetism
Photoemission
Acceso en línea:Texto completo
Tabla de Contenidos:
  • Intro
  • 1 Introduction
  • 2 Theoretical background
  • 2.1 The photoemission process
  • 2.1.1 The free-electron final state model
  • 2.2 Density functional theory and Local density approximation
  • 2.3 Strongly correlated electron systems
  • 2.4 Probing the spectral function A(~k,E) by photoemission
  • 2.5 Spin-orbit coupling
  • 2.5.1 Magnetic dichroism
  • 2.6 Two-photon photoemission
  • 2.7 Quantum well states in metallic thin films
  • 3 Experimental methods
  • 3.1 The momentum microscope
  • 3.2 Electron spin detection principles
  • 3.3 Spin-resolved photoemission measurements
  • 3.3.1 Characterization of the imaging spin polarization analyzer
  • 3.3.2 Evaluation of the spin polarization
  • 3.3.3 Generation of an unpolarized electron image from Cu(001)
  • 3.3.4 Analysis of the propagation of experimental errors
  • 3.3.5 Time behaviour of the spin sensitivity of the W(100) crystal
  • 3.4 Co thin films on Cu(001)
  • 4 Measurements
  • 4.1 Fermi surface of fct cobalt mapped by constant-initial state photoemission
  • 4.1.1 Photon energy scan
  • 4.1.2 Momentum distributions at discrete photon energies
  • 4.2 Valence electronic structure of Co/Cu(001)
  • 4.4.4 Spin polarization in resonant two-photon photoemission
  • 4.4.5 Spin-orbit hybridization of majority and minority QWS
  • 4.4.6 Conclusion
  • 5 Discussion
  • 5.1 The complex band structure
  • 5.2 Self-energy lifetime from photoemission linewidths
  • 5.3 Strong versus weak correlation
  • 6 Conclusion
  • 7 Appendix
  • 7.1 2D color code for spin-polarized images
  • 7.2 Intensity asymmetries due to spin-orbit interaction
  • 7.3 Asymmetry relations for off-normal photoemission (cubic (001) surface)
  • 7.4 Point groups in the fcc (and fct) lattice
  • Bibliography
  • Publications

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