Fermi surface mapping: Techniques and visualization
- Univ. of Oregon, Eugene, OR (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
- Univ. of Wisconsin, Milwaukee, WI (United States)
- Univ. of Oregon, Eugene, OR (United States). Dept. of Physics
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics
Angle-resolved photoemission (ARP) of valence bands is a mature technique that has achieved spectacular success in band-mapping metals, semiconductors, and insulators. The purpose of the present study was the development of experimental and analytical techniques in ARP which take advantage of third generation light sources. Here the authors studied the relatively simple Cu surface in preparation for other metals. Copper and related metals themselves are of current interest, especially due to its role as an interlayer in spin valves and other magnetic heterostructures. A major goal of this study was the development of a systematic technique to quickly (i.e. in a few hours of synchrotron beamtime) measure the FS and separate it into bulk and surface FS`s. Often, one needs to avoid bulk features altogether, which one can achieve by carefully mapping their locations in k-space. The authors will also show how they systematically map Fermi surfaces throughout large volumes of k-space, and, by processing the resulting volume data sets, provide intuitive pictures of FS`s, both bulk and surface.
- Research Organization:
- Lawrence Berkeley Lab., CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG06-86ER45275
- OSTI ID:
- 603514
- Report Number(s):
- LBNL--39981; ON: DE97007345
- Country of Publication:
- United States
- Language:
- English
Similar Records
BSCCO superconductors: Hole-like Fermi surface and doping dependence of the gap function