Complex Oxide‐metal Hybrid Metamaterials with Integrated Magnetic and Plasmonic Non‐noble Metal Nanostructures DOI Creative Commons
Jijie Huang, Bin Zhang,

Danny Hermawan

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Abstract Vertically aligned nanocomposite (VAN) thin films offer exceptional physical properties through diverse material combinations, providing a robust platform for designing complex nanocomposites with tailored performance. Considering materials compatibility issues, most of oxide‐metal VANs have focused on noble metals as the secondary phase in oxide matrix. Here, an hybrid metamaterials VAN form has been designed which combines ferroelectric BaTiO 3 (BTO) two immiscible non‐noble metal elements Co and Cu, resulting three‐phase BTO‐Co‐Cu (BTO‐CC) film. This film exhibits characteristic nanopillar‐in‐matrix nanostructure three distinct types nanopillar morphologies, i.e., Co‐rich cylindrical nanopillars, Cu‐Co‐nanolaminated rectangular nanopillars Co‐Cu‐core–shell nanopillars. Phase field modeling indicates constructed structure is resulted from interplay between thermochemical, chemomechanical, interfacial energy driving forces. The strong structural anisotropy leads to anisotropic optical magnetic properties, presenting potential hyperbolic metamaterial (HMM) transverse‐positive dispersion near‐infrared region. inclusion Cu induces surface plasmon resonance (SPR) visible Additionally, demonstrated BTO/BTO‐CC bilayer, confirming room‐temperature multiferroicity novel exploring electro‐magneto‐optical coupling along vertical interfaces toward future integrated devices.

Language: Английский

Complex Oxide‐metal Hybrid Metamaterials with Integrated Magnetic and Plasmonic Non‐noble Metal Nanostructures DOI Creative Commons
Jijie Huang, Bin Zhang,

Danny Hermawan

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Abstract Vertically aligned nanocomposite (VAN) thin films offer exceptional physical properties through diverse material combinations, providing a robust platform for designing complex nanocomposites with tailored performance. Considering materials compatibility issues, most of oxide‐metal VANs have focused on noble metals as the secondary phase in oxide matrix. Here, an hybrid metamaterials VAN form has been designed which combines ferroelectric BaTiO 3 (BTO) two immiscible non‐noble metal elements Co and Cu, resulting three‐phase BTO‐Co‐Cu (BTO‐CC) film. This film exhibits characteristic nanopillar‐in‐matrix nanostructure three distinct types nanopillar morphologies, i.e., Co‐rich cylindrical nanopillars, Cu‐Co‐nanolaminated rectangular nanopillars Co‐Cu‐core–shell nanopillars. Phase field modeling indicates constructed structure is resulted from interplay between thermochemical, chemomechanical, interfacial energy driving forces. The strong structural anisotropy leads to anisotropic optical magnetic properties, presenting potential hyperbolic metamaterial (HMM) transverse‐positive dispersion near‐infrared region. inclusion Cu induces surface plasmon resonance (SPR) visible Additionally, demonstrated BTO/BTO‐CC bilayer, confirming room‐temperature multiferroicity novel exploring electro‐magneto‐optical coupling along vertical interfaces toward future integrated devices.

Language: Английский

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