• Cs-corrected (S)TEM and Electron holography:
  • High resolution at 200kV and 300kV (High-Tc superconductors (YBCO etc.), semiconductors (Si, Ge, GaAs, GaN), ferroelectrics (BaTiO3, PbTiO3, LiNbO3), heterostructures (LaAO3/SrTiO3  etc.), porous structures, magnetic shape memory materials (Ni50Mn30Ga20)
  • Medium resolution using Cs-corrected Lorentz lens (magnetic particles/domains, semiconductors)
  • Low voltage high resolution Electron holography (≤ 80kV) (graphene)
• Image simulations
• Electron optics
• Analytical methods (EELS, EFTEM, EDAX)

• SALVE
• Strom aus Luft und Li - Effiziente bifunktionelle Sauerstoffelektroden
• Nickelate heterostructures as a laboratory for many-body physics (DFG)

Dr. rer. nat. at University Tübingen (HRTEM and Electron Holography)

Previous Affiliation:
Triebenberglabor für Höchstauflösende Transmissionselektronenmikroskopie und Elektronenholographie, TU Dresden

Electron holography

Hannes Lichte, Dorin Geiger, Alexander Harscher, Eduard Heindl, Michael Lehmann, Dimitrios Malamidis: Artefacts in Electron Holography, Ultramicroscopy 64 (1996) p. 67 - 77.

Dorin Geiger, Hannes Lichte, Martin Linck and Michael Lehmann: Electron Holography with Cs-corrected Transmission Electron Microscope, Microscopy and Microanalysis 14, 2008, 68-81.

Hannes Lichte, Dorin Geiger, Martin Linck: Electron holography in an aberration corrected TEM, invited by the Royal Society. Proceedings of November 2008 meeting in Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Phil. Trans. R. Soc. A 28 September 2009, vol. 367, no. 1903, 3773-3793. (doi: 10.1098/rsta.2009.0126)

Porous structures

Piotr Krawiec, Dorin Geiger and Stefan Kaskel: Ordered mesoporous silicon carbide (OM-SiC) via polymer precursor nanocasting, Chem. Commun (2006) Issue 23, p. 2469 – 2470.

Emanuel Kockrick, Piotr Krawiec, Walther Schnelle, Dorin Geiger, and Stefan Kaskel: Space-confined formation of fct-FePt Nanoparticles in Ordered Mesoporous Silica SBA-15, Advanced Materials, 19 (2007) 3021–3026.

Emanuel Kockrick, Christian Schrage, Anett Grigas, Dorin Geiger and Stefan Kaskel: Synthesis and catalytic properties of microemulsion derived cerium oxide nanoparticles, Journal of Solid State Chemistry 181 (2008) 1614– 1620.

Piotr Krawiec, Emanuel Kockrick, Lars Borchardt, Dorin Geiger, Avelino Corma, Stefan Kaskel: Ordered Mesoporous Carbide Derived Carbons: Novel Materials for Catalysis and Adsorption, J. Phys. Chem. C (2009) 113, 7755–7761.

Lars Borchardt, Emanuel Kockrick, Philipp Wollmann, Marta Guron, Dorin Geiger, Larry Sneddon, Stefan Kaskel, Ordered mesoporous boron carbide based materials via precursor nanocasting, Chemistry of Materials, 22 (2010) 4660-4668, DOI:10.1021/cm100837r.

Magnetic structures

Amit Kohn, Julian S. Dean, Andras Kovacs, Alexander Zeltser, Matthew J. Carey, Dorin Geiger, Gino Hrkac, Thomas Schrefl, and Dan A. Allwood, Exchange-bias in amorphous ferromagnetic and polycrystalline antiferromagnetic bilayers: Structural study and micromagnetic modelling, Journal of Applied Physics 109 (2011) 083924, doi:10.1063/1.3559261.

Artem Shalimov, Kai Potzger, Dorin Geiger, Hannes Lichte, G. Talut, A. Misiuk, H. Reuther, F. Stromberg, Shengqiang Zhou, C. Baehtz, J. Fassbender: Fe nanoparticles embedded in MgO crystals, Journal of Applied Physics 105 (2009) 064906.

Shengqiang Zhou, Kai Potzger, Gufei Zhang, Arndt Mücklich, F. Eichhorn, N. Schell, R. Grötzschel, B. Schmidt, W. Skorupa, M. Helm, J. Fassbender and Dorin Geiger: Structural and magnetic properties of Mn-implanted Si, Phys. Rev. B 75, No.8 (2007) 085203.

Semiconductors

Thomas Schroeder, Ioan Costina, Günter Weidner, Alessandro Giussani, Christian Wenger, and Peter Zaumseil, Constantin Mocuta, Till H. Metzger, Dorin Geiger and Hannes Lichte: Self assembled Ge nanocrystals on high-k cubic Pr2O3 (111) / Si (111) support systems, J. Appl. Phys 102 (2007) 034107.