DataVXAdvanced Functional MaterialsPaper
journal article·2015-11

Selective Alignment of Molecular Glass Wrinkles by Engineered Magnetic Field Landscapes

Henning Huckfeldt, Florian Ahrend, Dennis Holzinger, Holger Klein, Dieter Engel, Michael Melzer, Denys Makarov, Oliver G. Schmidt, Thomas Fuhrmann‐Lieker, Arno Ehresmann

Advanced Functional Materials· Volume 25· Issue 43
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Source abstract

Abstract

A new approach for aligning wrinkles in thin viscoelastic polymethylmethacrylate films is established by sandwiching them between ferromagnetic layers. Experiments prove that a contribution from an engineered anisotropic 1D periodic magnetic stray field pattern can be decisive for the alignment of otherwise randomly oriented wrinkles at commensurate periods of the magnetic template pattern and the wrinkles. Alternatively, random wrinkling is observed under similar conditions, but when periodic magnetic stray fields are missing or not commensurate with the wrinkle wavelength. The possibility to stabilize two distinct types of wrinkling patterns in the same material system paves the way toward mechanically reconfigurable functional elements, enabling exciting possibilities for stretchable electronics, magnetic field sensors, and tuneable gratings for optoelectronics and photonics.
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Research context

Ceramics & glassesElectronic materials

OpenAlex topics: Advanced Materials and Mechanics · Advanced Sensor and Energy Harvesting Materials · Micro and Nano Robotics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT) Kassel University Heinrich‐Plett‐Strasse 40 34132 Kassel Germany

Helmholtz‐Zentrum Berlin für Materialien und Energie Research Group Functional Nanomaterials Hahn‐Meitner‐Platz 1 14109 Berlin Germany

Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden) Institute for Integrative Nanosciences Helmholtzstrasse 20 01069 Dresden Germany

Department of Chemistry and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT) Kassel University Heinrich‐Plett‐Strasse 40 34132 Kassel Germany

Funding

European Research Council

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