Tutorials

To be discussed at:

25.04.2012: Fermi surface of nickel

• De Haas van Alphen Effect in Nickel: Manuscript
• Supporting link: Visualizing Fermi surfaces I: http://www.phys.ufl.edu/fermisurface/
• Supporting link: Visualizing Fermi surfaces II (including the character of the wave functions): http://www.physik.tu-dresden.de/~fermisur/
• Recommended literature: E.g., Ascroft, Mermin: Solid State Physics (ch. 14 in the Int. Ed. 1972)

09.05.2012: Photoemission data on Ni

• The manuscript to be discussed: Nakajima et al., 2004
• Supporting information: Early similar data which had been shown in the lecture: Guillot et al., 1977. These early results are covered by the data in Nakajima's pubilcation.
• Recommended literature: E.g., P.A. Cox, Transition metal oxides, Oxford (reprint 2011)

23.05.2012: Filling-controlled Metal-insulator transition 

• Manuscript to be discussed: Yoshida2002
• Supporting information: Experimental Zaanen-Sawatki-Allen schema: Boquet1996 (see fig. 15)
• Hints: Why the O:2p and Ti PES peaks both change upon doping? Why the coherent peak at E_F evolves? What one can extract from low-temperature specific heat data? How the band-width and effective mass are connected?

6.5.2012: Spin-charge separation

• 3 Slides of a lecture by G. Sawatzki to be discussed
• The paper Sawatzki is referring to: Kim2006Nature
• A BBC short movie on spin-charge separation: http://news.bbc.co.uk/2/hi/uk_news/england/8227861.stm

20.6.2012: Resonant x-ray scattering

• Manuscript to be discussed: Wilkins2005
• A talk by Y. Chuang given at the Advanced Light Source (slides 1-7 are a nice introduction to RXS)
• Further reading: P. Abbamonte, Resonant x-ray diffraction demystified

4.7.2012: Peierls transition

• Manuscript to be discussed: Ahn, PRL 2005
• Link: Peierls Instabilität und Ladungsdichtewellen
• Further Reading (only relevant paragraphs on CDW, nesting, 1D band structure, and Peierls transition): Conceptual Aspects of Structure-Property Correlations and
  Electronic Instabilities

Questions to be addressed in each tutorial session:

1. Which experiment has been done? What is the experimental set-up, how does it work?
2. What can be learnt from this experiment in general? How do the results look like in general, let's say on the textbook-level?
3. What are the results in this particular case?
4. How to analyze/interpret the results? 
5. What can be extracted for the general understanding of this material?
6. Any other related question which you may find interesting.