High-resolution three-dimensional imaging of topological textures in nanoscale single-diamond networks.

Autor: Karpov D; Paul Scherrer Institute, Villigen, Switzerland.; European Synchrotron Radiation Facility, Grenoble, France., Djeghdi K; Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland.; Swiss National Center of Competence in Research Bio-Inspired Materials, University of Fribourg, Fribourg, Switzerland., Holler M; Paul Scherrer Institute, Villigen, Switzerland., Abdollahi SN; Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland.; Department of Chemistry, University of Basel, Basel, Switzerland., Godlewska K; Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland., Donnelly C; Max Planck Institute for Chemical Physics of Solids, Dresden, Germany.; International Institute for Sustainability with Knotted Chiral Meta Matter (WPI-SKCM2), Hiroshima University, Hiroshima, Japan., Yuasa T; Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA.; Yokkaichi Research Center, JSR Corporation, Yokkaichi, Japan., Sai H; Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA.; Simpson Querrey Institute for Bionanotechnology, Northwestern University, Evanston, IL, USA., Wiesner UB; Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA.; Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, NY, USA., Wilts BD; Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland.; Swiss National Center of Competence in Research Bio-Inspired Materials, University of Fribourg, Fribourg, Switzerland.; Department of Chemistry and Physics of Materials, University of Salzburg, Salzburg, Austria., Steiner U; Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland.; Swiss National Center of Competence in Research Bio-Inspired Materials, University of Fribourg, Fribourg, Switzerland., Musya M; Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Sendai, Japan., Fukami S; Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Sendai, Japan.; Center for Science and Innovation in Spintronics, Tohoku University, Sendai, Japan.; Center for Innovative Integrated Electronic Systems, Tohoku University, Sendai, Japan.; WPI Advanced Institute for Materials Research, Tohoku University, Sendai, Japan.; Inamori Research Institute for Science, Kyoto, Japan., Ohno H; Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Sendai, Japan.; Center for Science and Innovation in Spintronics, Tohoku University, Sendai, Japan.; Center for Innovative Integrated Electronic Systems, Tohoku University, Sendai, Japan.; WPI Advanced Institute for Materials Research, Tohoku University, Sendai, Japan., Gunkel I; Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland.; Swiss National Center of Competence in Research Bio-Inspired Materials, University of Fribourg, Fribourg, Switzerland., Diaz A; Paul Scherrer Institute, Villigen, Switzerland., Llandro J; Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Sendai, Japan. llandro.justin.b6@tohoku.ac.jp.; Center for Science and Innovation in Spintronics, Tohoku University, Sendai, Japan. llandro.justin.b6@tohoku.ac.jp.; Sumitomo Chemical Co., Ltd, Tokyo, Japan. llandro.justin.b6@tohoku.ac.jp.
Jazyk: angličtina
Zdroj: Nature nanotechnology [Nat Nanotechnol] 2024 Oct; Vol. 19 (10), pp. 1499-1506. Date of Electronic Publication: 2024 Jul 23.
DOI: 10.1038/s41565-024-01735-w
Abstrakt: Topological defects-extended lattice deformations that are robust against local defects and annealing-have been exploited to engineer novel properties in both hard and soft materials. Yet, their formation kinetics and nanoscale three-dimensional structure are poorly understood, impeding their benefits for nanofabrication. We describe the fabrication of a pair of topological defects in the volume of a single-diamond network (space group Fd 3 ¯ m) templated into gold from a triblock terpolymer crystal. Using X-ray nanotomography, we resolve the three-dimensional structure of nearly 70,000 individual single-diamond unit cells with a spatial resolution of 11.2 nm, allowing analysis of the long-range order of the network. The defects observed morphologically resemble the comet and trefoil patterns of equal and opposite half-integer topological charges observed in liquid crystals. Yet our analysis of strain in the network suggests typical hard matter behaviour. Our analysis approach does not require a priori knowledge of the expected positions of the nodes in three-dimensional nanostructured systems, allowing the identification of distorted morphologies and defects in large samples.
(© 2024. The Author(s), under exclusive licence to Springer Nature Limited.)
Databáze: MEDLINE
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