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DY: Fachverband Dynamik und Statistische Physik
DY 24: Focus Session: New Trends in Nonequilibrium Physics – Conservation Laws and Nonreciprocal Interactions I
DY 24.5: Vortrag
Mittwoch, 20. März 2024, 10:45–11:00, BH-N 243
Mobility-induced condensation and (rotating) crystallization in a higher-order active Phase Field Crystal model — •Alina Barbara Steinberg1, Max Philip Holl2, and Uwe Thiele1,3 — 1Institut für Theoretische Physik, Universität Münster — 2Department of Chemistry and Materials Science & Department of Bioproducts and Biosystems, Aalto University — 3Center for Nonlinear Science, Universität Münster
Active soft matter consisting of self-propelled particles can show a variety of motility-induced phenomena, including phase separation and crystallization, i.e. the formation of clusters with respective liquid-like and crystal-like inner structure. We demonstrate this using an (active) Phase-Field-Crystal model [1-3] of higher order [4]. We consider active and passive cases, present morphological phase diagrams, and examples of localized states that represent the various types of clusters. Finally, we take a closer look at rotating crystallites and the dependence of their properties on control parameters.
[1] H. Emmerich et al., Adv. Phys., 61:665-743, 2012. [2] A. M. Menzel & H. Löwen, Phys. Rev. Lett., 110:055702, 2013. [3] L. Ophaus et al., Phys. Rev. E 98:022608, 2018. [4] Z.-L. Wang et al., Phys. Rev. Materials, 4:103802, 2020.
Keywords: Active Matter; Mobility Induced Phase Separation; Mobility Induced Crystallization; Active Phase Field Crystal Model; Nonlinear Science