Electronic Structure and Many-Body Physics from Photoemission Experiments (2018)

ECTS credits:

Course parameters:
Language: English
Level of course: PhD course
Time of year: Autumn 2018 (weeks 37-44, see below)
No. of contact hours/hours in total incl. preparation, assignment(s) or the like: 6 hours per week for lectures and exercises / 136.5 hours total
Capacity limits: 10 participants

Objectives of the course:
The course will provide the students with a theoretical and practical basis to understand and analyze the electronic structure and many-body effects as measured in photoemission spectra from a wide range of solid state materials ranging from conventional bulk metals and semiconductors to exotic quantum and two-dimensional materials.

Learning outcomes and competences:
At the end of the course, the student should be able to:

  • give an account of the type of electronic properties and many-body interactions that can be extracted from photoemission experiments
  • describe the underlying physics of photoemission spectra, particularly the spectral function of solids
  • analyze and extract electronic dispersion and linewidth parameters from experimental data
  • understand and apply Igor Pro software to simulate and fit the photoemission intensity from selected materials
  • describe topical materials and problems that are addressed by angle-resolved photoemission spectroscopy
  • know the basis of modern technical developments of energy-, momentum-, time-, space- and spin-resolved photoemission spectroscopies 

Compulsory programme:
Participation in lectures and exercises and handing in three projects.

Course contents:

  • The components of the photoemission intensity will be introduced: Spectral function, self-energy and matrix elements.
  • Many-body effects in a range of simple and advanced materials and examples of how to extract them from experimental data.
  • Advanced problems that can be addressed with high energy- and momentum-resolution ARPES: Correlated electron phenomena, polarons, superconductivity, charge density waves, Fermi liquids, Luttinger liquids, spin-related interactions, topological phases of matter.
  • Time- and spatially-resolved photoemission: Non-equilibrium dynamics, thermalisation and rate equation analysis, 4D dark-field imaging with band structure and prospects for new materials.
  • An emphasis is placed on practical simulations and analysis of existing experimental data from topical material systems using Igor Pro software.

Three years of Physics studies 

Name of lecturer:
Søren Ulstrup

Type of course/teaching methods:
The course will contain lectures, literature reading, exercises and three take-home projects with elements of literature study, numerical programing in Igor Pro and analysis of existing experimental data. Exercises will contain a mix of problem solving and literature presentations/discussions.

Scientific papers and reviews. The books “Photoelectron Spectroscopy: Principles and Applications, Springer-Verlag Berlin Heidelberg 3rd edition (2003)” by Stefan Hüfner and “Very High Resolution Photoelectron Spectroscopy (Lecture Notes in Physics), Springer-Verlag Berlin Heidelberg (2007)” edited by Stefan Hüfner are useful references.

Course homepage:
The course will have a Blackboard page.

Course assessment:
Pass/no pass based on active participation in exercises as well as completion of three take-home projects.

Department of Physics and Astronomy, Aarhus University

Special comments on this course:
A license for Wavemetrics Igor Pro version 7 or 8 is required to attend the course.

Weeks 37-44 (except week 42), ie. within the period 10 September to 4 November 2018.
Schedule will be determined at a later time point taking participants' wishes into account.

Department of Physics and Astronomy, Aarhus University.

Deadline for registration is 15 August 2018. Information regarding admission will be sent out no later than two days later.

For registration: ulstrup@phys.au.dk

If you have any questions, please contact Søren Ulstrup, e-mail: ulstrup@phys.au.dk