2014/10/01 by Alireza Shahabi, Hailong Wang, Shahabi, Alireza +3
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Graphene research and applications #Magnetic properties of thin films #Materials Science (cond-mat.mtrl-sci) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Soft Condensed Matter (cond-mat.soft) #Supercapacitor Materials and Fabrication
paper · pdf · doi:10.48550/arxiv.1410.0324
openalex publication_date 2014/10/01 · openalex created_date 2022/10/03 · openalex updated_date 2026/07/28
Interplay between structure and function in atomically thin crystalline\nnanoribbons is sensitive to their conformations yet the ability to prescribe\nthem is a formidable challenge. Here, we report a novel paradigm for controlled\nnucleation and growth of scrolled and folded shapes in finite-length\nnanoribbons. All-atom computations on graphene nanoribbons (GNRs) and\nexperiments on macroscale magnetic thin films reveal that decreasing the end\ndistance of torsionally constrained ribbons below their contour length leads to\nformation of these shapes. The energy partitioning between twisted and bent\nshapes is modified in favor of these densely packed soft conformations due to\nthe non-local van Der Waals interactions in these 2D crystals; they subvert the\nformation of supercoils that are seen in their natural counterparts such as DNA\nand filamentous proteins. The conformational phase diagram is in excellent\nagreement with theoretical predictions. The facile route can be readily\nextended for tailoring the soft conformations of crystalline nanoscale ribbons,\nand more general self-interacting filaments\n