Superconductivity in Hierarchical 3D Nanostructured Pb–In Alloys

Shevchun, A. F.; Струкова, Г. К.; Шмытько, И. М.; Strukov, G. V.; Vitkalov, Sergey; Yakovlev, Dmitry S.; Nazhestkin, Ivan A.; Shovkun, D. V.

doi:10.3390/sym14102142

Cited by 2 publications

(1 citation statement)

References 44 publications

(49 reference statements)

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“…Thus, the hierarchical Pb–In 85/15 mesostructure has the form of barbed wire a few micrometers long. It contains rods that are a few hundred nanometers long and needles tens of nanometers long, assembled from nanoparticles . Samples of the Pb–In 65/35 alloy look like straight and curved chains with a rather complex shape with a cross section of several micrometers and a length of up to 100 μm.…”

Section: Obtaining Hierarchical Forms As a Function Of Variable Param...mentioning

confidence: 99%

Biomimetic In Situ Self-Assembly of Metal Nanoparticles into Hierarchical 3D Mesostructures: Synthesis, Analysis, and Prospects

Strukov,

Strukova,

Leonard

et al. 2024

Crystal Growth & Design

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Studies of the properties of nano-, micro-, and macrostructures of natural materials such as wood, bone, seashells, and spider webs stimulated the development of a new field of materials science called "biomimetics" and "bioinspired materials". The subject of research is the processes of self-assembly of particles, leading to a hierarchical multiscale structure of the material and the search for answers to the fundamental challenge of materials science about the relationship between the composition−structure−properties−function of the material. The declared goal of research is to advance our understanding of multifunctional natural materials and to design artificial materials with increased functionality that mimic the principles of the structure of natural materials. Design of a multiscale structure of artificial material; creation of a composite material with a hierarchical structure, consisting of organic and inorganic components; manufacture of "smart" materials capable of adequately responding to certain external influences�this is the level of complexity that faces the problems along this path. The greatest challenge in manufacturing bioinspired materials is to design artificial structures with organizational complexity like their biological analogues and to control their properties through a hierarchical architecture. Currently, it is possible to achieve a given combination of nano-and microstructures of a polymer material, which ensures its superhydrophobic properties, through controlled polymerization. Another approach is to organize the process of self-assembly of colloidal particles to create a material with useful optical properties (opalescence, SERS). In this perspective, we briefly review approaches to solving these problems and consider in more detail the technique of biomimetic in situ self-assembly of metal nanoparticles for fabricating hierarchical 3D mesostructures by deposition of metal onto a cathode template from a solution under a programmable pulsed electric current. The developed methodology makes it possible to grow micrometer-sized mesostructures made of either ensembles of nanoparticles, woven nanowires, or nanoplates of regular metals (Cu, Ag, Zn), ferromagnets (Ni, Fe−Ni, Pd−Ni), superconductors (Pb−In, Pb−Bi, Pb−Sn), semiconductors (Bi 2 Se 3 , InSb), and composites. The obtained samples exhibit an embedded hierarchical structural order, intricate complexity of forms, and similarity with biological species, mushrooms, plants, and seashells (hence, biomimetics). We analyze the main factors affecting the result of directed assembly of particles and the prospects for the development of techniques for solving the problems of creating materials with increased functionality.

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Section: Obtaining Hierarchical Forms As a Function Of Variable Param...mentioning

confidence: 99%

Biomimetic In Situ Self-Assembly of Metal Nanoparticles into Hierarchical 3D Mesostructures: Synthesis, Analysis, and Prospects

Strukov,

Strukova,

Leonard

et al. 2024

Crystal Growth & Design

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Topological Insulator Nanowires Made by AFM Nanopatterning: Fabrication Process and Ultra Low‐Temperature Transport Properties

Yakovlev,

Frolov,

Nazhestkin

et al. 2024

Advanced Physics Research

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Topological insulator nanostructures became an essential platform for studying novel fundamental effects emerging at the nanoscale. However, conventional nanopatterning techniques, based on electron beam lithography and reactive ion etching of films, have inherent limitations of edge precision, resolution, and modification of surface properties, all of which are critical factors for topological insulator materials. In this study, an alternative approach for the fabrication of ultrathin Bi2Se3 nanoribbons is introduced by utilizing a diamond tip of an atomic force microscope (AFM) to cut atomically thin exfoliated films. This study includes an investigation of the magnetotransport properties of ultrathin Bi2Se3 topological insulator nanoribbons with controlled cross‐sections at ultra‐low 14 mK) temperatures. Current‐dependent magnetoresistance oscillations are observed with the weak antilocalization effect, confirming the coherent propagation of 2D electrons around the nanoribbon surface's perimeter and the robustness of topologically protected surface states. In contrast to conventional lithography methods, this approach does not require a highly controlled clean room environment and can be executed under ambient conditions. Importantly, this method facilitates the precise patterning and can be applied to a wide range of 2D materials.

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Superconductivity in Hierarchical 3D Nanostructured Pb–In Alloys

Cited by 2 publications

References 44 publications

Biomimetic In Situ Self-Assembly of Metal Nanoparticles into Hierarchical 3D Mesostructures: Synthesis, Analysis, and Prospects

Biomimetic In Situ Self-Assembly of Metal Nanoparticles into Hierarchical 3D Mesostructures: Synthesis, Analysis, and Prospects

Topological Insulator Nanowires Made by AFM Nanopatterning: Fabrication Process and Ultra Low‐Temperature Transport Properties

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