SEMINARIUM INSTYTUTOWE

Dnia: 03.03.2025 roku (poniedziałek)
o godzinie 13:00 w auli Instytutu

referat pt.:

Applications of topological magnetic transport

wygłosi

prof. Thomas M. Fischer

Universität Bayreuth, Niemcy

Paramagnetic colloidal particles are placed above magnetic patterned periodic and non-periodic surfaces and exposed to a homogeneous time dependent external magnetic field loop. The particles respond to the loop by a topologically nontrivial transport above the pattern. The magnetic loops are a sort of language enabling us to globally talk to the paramagnetic colloidal particles but simul- taneously provocing individual predesigned response in their transport. The talk will show a few examples of useful sentences of this topological language. We will show a polyglot programming of the topological walks of different classes of self assembled bipeds [1], a lab on the chip producing colloidal bipeds of a desired length [2], and the cloaked transport of single colloidal particles around an obstacle [3].

[1] M. Mirzaee-Kakhki, A. Ernst, D. de las Heras, M. Urbaniak, F. Stobiecki, J. Gördes, M. Reginka, A. Ehresmann, and T. M.
Fischer, Nature Commun. 11, 4670 (2020), ISSN 2041-1723, URL https://doi.org/10.1038/s41467-020-18467-9.
[2] J. Elschner, F. Farrokhzad, P. Kuświk, M. Urbaniak, F. Stobiecki, S. Akhundzada, A. Ehresmann, D. de las Heras, and
T. M. Fischer, Nature Commun. 15, 5735 (2024), ISSN 2041-1723, URL https://doi.org/10.1038/s41467-024-50023-7.
[3] M. E. B. Rossi, Anna, M. Thomas, P. Kuświk, M. Urbaniak, F. Stobiecki, S. Akhundzada, A. J. Vereijken, A. Ehresmann,
D. de las Heras, and T. M. Fischer, in press (2025).