Kristof (Krzysztof) M. Lebecki, personal web page

Work information

Present occupation. Postdoc @ Universität Konstanz (University of Konstanz, Germany). I am working in the group of prof. Ulrich Nowak. We are interested in computer simulations of magnetic systems. Particularly, I am involved in atomistic Monte-Carlo modeling. I am also still working on my previous subject: periodic magnetic structures + micromagnetic modeling. I am interested in one-dimensional periodic or elongated ferromagnetic structures. Like nanotubes, nanowires, or arrays of periodic structures. Especially, the influence of the geometry on the magnetization process is interesting for me.

I was also involved in the past in following subject: ferromagnetic islands or semiconductor film placed close to a quantum well made of a diluted magnetic semiconductor. I observed influence of the magnetic stray field generated by the superconductor / ferromagnetic structures on optical properties of the quantum well. This task was partly theoretical, but mainly experimental – I have grown samples (II-VI compounds in a MBE chamber, see my ex-department page), observed them with AFM (also tried to learn MFM), and finally performed optical measurements (photoluminescence) in cryogenic temperatures.

In 2008 at IF PAN in Warsaw (group SL3, supervisor prof. Jacek Kossut) I have finished my PhD: Periodic boundary conditions (PBC); their implementation and application in micromagnetism. Thesis (written unfortunately in , i.e. in Polish ;) ) can be found here. For non-scientists: I have written a short essay explaining this subject

Publications

1. K. Lebecki, A. Twardowski, The role of Jahn-Teller effect on the magnetic properties of Fe-based semimagnetic semiconductors, Solid State Commun. 80 (1991) 377.

2. K. Lebecki, A. Twardowski, Z. Liro, The influence of Jahn-Teller effect on magnetic properties of Fe-based semimagnetic semiconductors, Acta Phys. Pol. A 79 (1991) 373.

3. J.A. Gaj, K. Nguyen The, M. Nawrocki, A. Golnik, K. Lebecki, Scattering dynamics of free excitons on Fe⁺⁺ ions in Cd_1-xFe_xSe, Acta Phys. Pol. A 80 (1991) 409.

4. J.A. Gaj, K. Nguyen The, M. Arciszewska, K. Lebecki, Temperature dependence of the energy gap in Cd_1-xFe_xSe, Acta Phys. Pol. A 80 (1991) 405.

5. J.J. Dubowski, K. Lebecki, M. Buchanan, Fiber optic CdMnTe magnetic field sensor made by the laser ablation deposition technique, IEEE TM 43 (1994) 322.

6. K. Lebecki, Ł. Kłopotowski, J. Kossut, Optical Properties of a Semimagnetic Quantum Well in a Proximity of a Superconducting Film, Acta Phys. Pol. A 108 (2005) 741.

7. K.M. Lebecki, Magnetization reversal modeling for long ferromagnetic nanotubes, Mater. Sci.-Poland 26, No. 4 (2008), 983. See: link.

8. K.M. Lebecki, O. Kazakova, M.W. Gutowski, Micromagnetic simulations of hysteresis in an array of cobalt nanotubes, Physica B 403 (2008) 360, doi:10.1016/j.physb.2007.08.049.

9. K.M. Lebecki, M.J. Donahue, M.W. Gutowski, Periodic boundary conditions for demagnetization interactions in micromagnetic simulations, J. Phys. D. 41 (2008) 175005, doi: 10.1088/0022-3727/41/17/175005.

10. P. Vavassori, D. Bisero, V. Bonanni, A. Busato, M. Grimsditch, K. M. Lebecki, V. Metlushko, and B. Ilic, Magnetostatic dipolar domain wall pinning in chains of Permalloy triangular ring micromagnets, Phys. Rev. B 78 (2008) 174403, doi: 10.1103/PhysRevB.78.174403.

Presentations (broken links, I know. Files will be added soon)

• Będlewo 2007 workshop (poster).

• HMM 2007 conference in Naples (poster).

• Intermag 2008 conference in Madrid (poster).

Contact information

E-mail: Kristof.Lebecki (@ connector) fuw.edu.pl

Personal interests (beside physics, of course)

• My dear family (review 2005). Tatra mountains’ 2006. Reviews: 2006, 2007.
  My family’s page is here (it is mainly in Polish), my wife’s page is here.

• … long, long nothing ;) …

• DYI.

• Hiking, especially in small hills.

• Blood donation.

• Choir singing, classical music.

• Cycling.

Last updated: 24 Aug 2009

I do not like spam…

Back to IF PAN site