M
Marko Prehm
Researcher at Martin Luther University of Halle-Wittenberg
Publications - 108
Citations - 4055
Marko Prehm is an academic researcher from Martin Luther University of Halle-Wittenberg. The author has contributed to research in topics: Liquid crystal & Mesophase. The author has an hindex of 38, co-authored 108 publications receiving 3690 citations. Previous affiliations of Marko Prehm include University of Sheffield.
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Nematic phases of bent-core mesogens
TL;DR: In this article, a temperature dependent stepwise transition from cybotactic nematic phases to different types of non-polar and tilted smectic phases (SmC(I) and SmC(II)) is observed with a mesophase composed of elongated, but not yet fused cybactic clusters (CybC) as an intermediate state of this transition.
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Calamitic Bolaamphiphiles with (Semi)Perfluorinated Lateral Chains: Polyphilic Block Molecules with New Liquid Crystalline Phase Structures
Xiaohong Cheng,Marko Prehm,Malay Kumar Das,Jens Kain,Ute Baumeister,Siegmar Diele,Dag Leine,and Alfred Blume,Carsten Tschierske +8 more
TL;DR: Novel bolaamphiphiles consisting of a rigid biphenyl unit, two terminal polar 1,2-diol units and laterally attached (semi)perfluorinated chains have been synthesized via palladium-catalyzed cross coupling reactions as the key step.
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Chiral self-sorting and amplification in isotropic liquids of achiral molecules.
TL;DR: The first experimental evidence that mirror-symmetry breaking can also take place at a liquid-liquid phase transition in isotropic liquids of achiral molecules, even at relatively high temperatures around 200 °C is provided.
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Nematic Phases in 1,2,4‐Oxadiazole‐Based Bent‐Core Liquid Crystals: Is There a Ferroelectric Switching?
Govindaswamy Shanker,Mamatha Nagaraj,Antoni Kocot,Antoni Kocot,Jagdish K. Vij,Marko Prehm,Carsten Tschierske +6 more
TL;DR: In this paper, a series of new 1,2,4-oxadiazole derived bent-core liquid crystals incorporating one or two cyclohexane rings are synthesized and investigated by optical polarizing microscopy, differential scanning calorimetry (DSC), X-ray diffraction (XRD), electro-optical, and dielectric investigations.
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Dynamic Mirror‐Symmetry Breaking in Bicontinuous Cubic Phases
Christian Dressel,Feng Liu,Marko Prehm,Xiangbing Zeng,Goran Ungar,Goran Ungar,Carsten Tschierske +6 more
TL;DR: Sp spontaneous mirror-symmetry breaking in cubic phases formed by achiral multichain-terminated diphenyl-2,2′-bithiophenes is reported and it was found that stochastic symmetry breaking is a general phenomenon observed in bicontinuous cubic liquid crystal phases of a chiral rod-like compounds.