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Vivien Petzold
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Personal background
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since 2001 I am studying physics at the
University of Technology Dresden.
since 2004 In 2004 Helge persuaded me in
his lectures
of the interesting research one can do with FPLO. Since that time I am working as a research assistent at the Max-Planck Institute for Chemical Physics of Solids.
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Scientific research topic
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Diploma thesis: Electronic structure and related superconducting properties of
conventional superconductors
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Abstract of scientific research topic
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A detailed knowledge of the electronic structure of a compound is the
prerequisite for the understanding of its superconducting properties.
The theoretical study of MgB2 is one of the most encouraging examples
for a successful electronic structure approach explaining its
superconducting properties in great detail. On the other hand, the
knowledge about the influence of substitutional disorder on a
microscopic basis is still unsatisfactory. In this work, the
electronic structure of substitutionally disordered intermetallic
compounds shall be investigated on the basis of density functional
calculations. Because of the simplicity of its crystal structure and
the rich experimental data base, MgB2 related systems like MgScB2 or
Mg1-x(Al1-yLiy)xB2 are an ideal starting point for such investigations. The
calculations shall be done in different approximations (VCA, CPA,
supercells) and will be compared with recent experimental results like
de-Haas-van-Alphen measurements, optical spectra and thermodynamic
properties.
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Publication and Poster
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Publication
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- A. Mehta, P. Höhn, W. Schnelle, H. Rosner, V. Petzold,
U. Burkhardt, and R. Kniep, Ba2(Ni3N2): A low valent
Nitridonickelate - Synthesis, Structure and Physical Properties,
Chem. Europ. Journ., in print.
download pre-print
(1,1 MB, PDF)
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Poster
- V. Petzold, and H. Rosner,
Electronic structure and electron phonon coupling in Sc doped
MgB2, DPG Frühjahrstagung, Berlin 2005.
- M. Schmitt, V. Petzold, D. Clausnitzer, W. Wustmann,
C. Räder, R. Cliemt, U. Lorenz, and H. Rosner,
Crystal structures and electronic properties of (A3)E (A = Ca, Sr, Ba; E =
Sb, Bi), DPG Frühjahrstagung, Berlin 2005.
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