Publications by authors named "Aidan Delgado"
Topological phases in laterally confined low-dimensional nanographenes have emerged as versatile design tools that can imbue otherwise unremarkable materials with exotic band structures ranging from topological semiconductors and quantum dots to intrinsically metallic bands. The periodic boundary conditions that define the topology of a given lattice have thus far prevented the translation of this technology to the quasi-zero-dimensional (0D) domain of small molecular structures. Here, we describe the synthesis of a polycyclic aromatic hydrocarbon (PAH) featuring two localized zero modes (ZMs) formed by the topological junction interface between a trivial and nontrivial phase within a single molecule.
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- * Synthesis of metallic GNRs has been challenging due to strict structural rules and limited control over the building blocks used in their construction.
- * A new method is reported that creates regular GNRs with strong metallic properties by incorporating a special superlattice structure, which has been confirmed through theoretical models and experimental techniques.
Additive Manufacturing (AM) techniques allow the production of complex geometries unattainable through other traditional technologies. This advantage lends itself well to rapidly iterating and improving upon the design of microwave photonic crystals, which are structures with intricate, repeating features. The issue tackled by this work involves compounding a high-permittivity material that can be used to produce 3D microwave photonic structures using polymer extrusion-based AM techniques.
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- The research focuses on hydrogen-terminated zigzag nanographene and its unique magnetic quantum properties, which are crucial for advancing carbon-based spintronics.
- Zigzag graphene nanoribbons exhibit ferromagnetic edge states that can couple antiferromagnetically across their width, but this magnetic structure has been hard to observe due to interference from the substrate.
- The study introduces a technique to stabilize and isolate these edge states using nitrogen atom dopants, demonstrating significant spin splitting in the electronic structure and paving the way for future applications in nanoscale sensors and logic devices.