Room‐Temperature Multiferroic Liquids: Ferroelectric and Ferromagnetic Order in a Hybrid Nanoparticle–Liquid Crystal System
Abstract
AbstractResponsiveness to multiple stimuli and adaptivity are paramount for designing smart multifunctional materials. In soft, partially ordered systems, these features can often be achieved via self‐assembly, allowing for the combination of diverse components in a complex nanostructured material. Here, an example of a liquid is demonstrated that simultaneously displays both ferroelectric and ferromagnetic types of order. This material is a nanostructured liquid crystalline hybrid comprising ferrimagnetic barium hexaferrite nanoplatelets suspended in a ferroelectric nematic host. Director‐mediated interactions drive the self‐assembly of nanoplatelets in an intricate network. Due to the coupling between the polar electric and magnetic types of order, this material demonstrates magnetically driven electric and nonlinear optical responses, as well as electrically driven magnetic response. Such multiferroic liquids are highly promising for applications in energy harvesting, nonlinear optics, and sensors.
Article Details
Authors (12)
Hajnalka Nádasi
Institute of Physics Otto von Guericke University Universitätsplatz 2 39106 Magdeburg Germany
Peter Medle Rupnik
Jožef Stefan Institute Jamova cesta 39 Ljubljana SL‐1000 Slovenia
Melvin Küster
Institute of Electrical Measurement Science and Fundamental Electrical Engineering and Laboratory for Emerging Nanometrology TU Braunschweig Hans‐Sommer‐Str. 66 38106 Braunschweig Germany
Alexander Jarosik
Institute of Physics Otto von Guericke University Universitätsplatz 2 39106 Magdeburg Germany
Rachel Tuffin
Matthias Bremer
Merck Electronics KGaA Frankfurter Strasse 250 64293 Darmstadt Germany
Melanie Klasen‐Memmer
Merck Electronics KGaA Frankfurter Strasse 250 64293 Darmstadt Germany
Darja Lisjak
Nerea Sebastián
Jožef Stefan Institute Jamova cesta 39 Ljubljana SL‐1000 Slovenia
Alenka Mertelj
Jožef Stefan Institute Jamova cesta 39 Ljubljana SL‐1000 Slovenia
Frank Ludwig
Institute of Electrical Measurement Science and Fundamental Electrical Engineering and Laboratory for Emerging Nanometrology TU Braunschweig Hans‐Sommer‐Str. 66 38106 Braunschweig Germany
Alexey Eremin
Institute of Physics Otto von Guericke University Universitätsplatz 2 39106 Magdeburg Germany