New, highly tunable composite materials—with a twist

Phys.org  June 14, 2022
Researchers at the University of Utah found that they can design “twisted bilayer composite,” from a range of composite materials from moiré patterns created by rotating and stretching one lattice relative to another. As the twist angle and scale parameters vary, these patterns yield myriad microgeometries. Their electrical and other physical properties can change depending on whether the resulting moiré patterns are regularly repeating or non-repeating. According to the researchers their mathematical framework allows for changes in optical, electrical, magnetic, diffusive, and thermal properties with very small changes in the twist angle. New materials can be designed…read more. Open Access TECHNICAL ARTICLE 

Fractal arrangement of periodic systems. Credit: Communications Physics volume 5, Article number: 148 (2022) 

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