Pawel Pieranski – crystallographer of liquids and Alfred-Saupe-prize laureate 2019

Figures & data

Figure 1. The Alfred Saupe Medal, which is bestowed to laureates of the Alfred Saupe Prize in recognition of outstanding work in the field of liquid crystal research and its applications.

Figure 2. Development of the number of publications per year in certain LC research fields (according to the Web of Science, Clarivate Analytics, 2019). Arrows indicate the appearance of some publications by Pawel Pieranski and his coworkers.

Figure 3. Facets of liquid single crystals. (a) Dislocations in single crystals of a hexagonal blue phase, BPH^3D. (b)–(d) Spiral-like surface steps emerging from a screw dislocation on surfaces of liquid single crystals: (b) blue phase; (c), (d) lyotropic cubic phase. (e) Facets of a BP1 blue phase single crystal. (f)–(h) Facets of a bicontinuous lyotropic phase grown in an L1-phase environment and calculated structures thereof; (i)–(l) liquid single crystals and soft crystals grown in a gas environment: (i), (j) lyotropic cubic phase; (k) facets of a thermotropic bicontinuous cubic phase and (l) surface steps on the facets detected by AFM. With kind permission by the respective publisher, the figures are reproduced from the following references: (a) Figure 3 from Ref. [27]. (© EDP Sciences); (b), (f), (g) Figure 9 and Figure 16 from Ref. [70]. (© Elsevier); (c), (d) Figure 7 from Ref. [59]. (© IOP Publishing); (e) Figure 1 from Ref. [20]. (© EDP Sciences); (h) Figure 18 from Ref. [61]. (© EDP Sciences); (i), (j) Figure 5(c) and Figure 7 from Ref. [54]. (© EDP Sciences); (k), (l) Figure 5 and Figure 11 from Ref. [41]. (© EDP Sciences).

Figure 5. Pawel Pieranski, giving his speech ‘The Physics of the i-Land’ at the 46th German liquid crystal conference on 28 March 2019 in Paderborn (Photo: Bingru Zhang, Paderborn University).

Figure 4. (a) Free-standing film observed by polarising optical microscopy (POM). (b) Frames of different shapes for freely suspended smectic or lyotropic films. (c) Array of magnets and (d) POM image of umbilics stabilised by these magnets. (e) POM image of a nematic dowser texture subject to flow. (f) An unexpected visit in Pawel Pieranski’s lab, reported in Ref. [69]. With kind permission by the respective publisher, the figures are reproduced from the following references: (a), (f) Figure 1 from Ref. [69]. (© EDP Sciences); (b) Figure 4 from Ref. [52]. (© MDPI (Basel, Switzerland)); (c), (d) Figure 22 from Ref. [68]. (© Taylor&Francis); (e) Figure 12 from Ref. [72]. (© EDP Sciences).

Jorand M, Pierański P. Brownian motion of screw dislocations in the hexagonal blue phase. J Phys. 1987;48(7):1197–1205.

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Pieranski P. Dislocations and other topological oddities. C R Phys. 2016;17(3–4):242–263.

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Leroy S, Pieranski P. Steps and dislocations in cubic lyotropic crystals. J Phys. 2006;18(28):6453–6468.

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Barbet-Massin R, Pieranski P. Blue phase one: first optical measurements of the order parameter. Journal De Physique Lettres. 1984;45(16):L799–L806.

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Latypova L, Góźdź W, Pieranski P. Symmetry, topology and faceting in bicontinuous lyotropic crystals. Eur Phys J E. 2013;36(8):88.

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Pieranski P, Sittler L, Sotta P, et al. Growth and shapes of a cubic lyotropic liquid crystal. Eur Phys J E. 2001;5(3):317–328.

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Even C, Impéror-Clerc M, Pieranski P. Exploring the facets of “soft crystals” using an atomic force microscope. Eur Phys J E. 2006;20(1):89–98.

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Pieranski P. Generation of umbilics by poiseuille flows. Eur Phys J E. 2014;37(4):24.

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Pieranski P. Physics of free-standing lyotropic films. Materials. 2014;7(5):3453–3469.

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Pieranski P, Yang B, Burtz LJ, et al. Generation of umbilics by magnets and flows. Liq Cryst. 2013;40(12):1593–1608.

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Pieranski P, Hulin JP, Godinho MH. Rheotropism of the dowser texture. Eur Phys J E. 2017;40(12):109.

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