3D Nanomagnetism in Low Density Interconnected Nanowire Networks

Abstract

Free-standing, interconnected metallic nanowire networks with density as low as 40 mg/cm^{3} have been achieved over cm-scale areas, using electrodeposition into polycarbonate membranes that have been ion-tracked at multiple angles. Networks of interconnected magnetic nanowires further provide an exciting platform to explore 3-dimensional nanomagnetism, where their structure, topology and frustration may be used as additional degrees of freedom to tailor the materials properties. New magnetization reversal mechanisms in cobalt networks are captured by the first-order reversal curve method, which demonstrate the evolution from strong demagnetizing dipolar interactions to intersections-mediated domain wall pinning and propagation, and eventually to shape-anisotropy dominated magnetization reversal. These findings open up new possibilities for 3-dimensional integrated magnetic devices for memory, complex computation, and neuromorphics.

arXiv comment24 pages, 4 figures; 3 page Supporting Information with 1 figure. Nano Letters (2020)

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Cited by in corpus (19)

• Domain wall automotion in three-dimensional magnetic helical interconnectors
• Observation of hydrogen-induced Dzyaloshinskii-Moriya interaction and reversible switching of magnetic chirality
• Non-planar geometrical effects on the magnetoelectrical signal in a three-dimensional nanomagnetic circuit
• Controlled Evolution of Three-Dimensional Magnetic States in Strongly Coupled Cylindrical Nanowire Pairs
• Efficient and Robust Metallic Nanowire Foams for Deep Submicrometer Particulate Filtration
• 3D Interconnected Magnetic Nanowire Networks as Potential Integrated Multistate Memristors
• Switchable Magnetic Frustration in Buckyball Nanoarchitectures
• Hydroxide-based magneto-ionics: electric-field control of reversible paramagnetic-to-ferromagnetic switch in $\alpha$-Co(OH)${}_2$ films
• Three-dimensional nanoscale control of magnetism in crystalline Yttrium Iron Garnet
• Ultrasensitive Sub-monolayer Palladium Induced Chirality Switching and Topological Evolution of Skyrmions
• Single-Phase L1${}_0$-Ordered High Entropy Thin Films with High Magnetic Anisotropy
• Ionically-Driven Synthesis and Exchange Bias in Mn${}_4$N/MnN${}_x$ Heterostructures
• Machine-Learning Recognition of Dzyaloshinskii-Moriya Interaction from Magnetometry
• Geometrical properties of 3D crossed nanowire networks
• Defect-sensitive High-frequency Modes in a Three-Dimensional Artificial Magnetic Crystal
• Microstructure-Dependent Particulate Filtration using Multifunctional Metallic Nanowire Foams
• Simulation of current-driven magnetisation switching in nanopillars with Perpendicular Shape Anisotropy
• Ultralight High-Entropy Nanowire Scaffolds for Extreme-Temperature Functionality
• Element-Specific First Order Reversal Curves Measured by Magnetic Transmission X-ray Microscopy