Core-shell metallic alloy nanopillars-in-dielectric hybrid metamaterials with magneto-plasmonic coupling
| Autor: | Prashant Padmanabhan, Xinghang Zhang, Di Zhang, R. Edwin García, Han Wang, Haohan Wang, Xing Sun, Xin Li Phuah, K.S.N. Vikrant, Ping Lu, Jijie Huang, Luke Mitchell McClintock, Haiyan Wang, Xingyao Gao, Xiaoshan Xu, Hou-Tong Chen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Nanostructure
Nanocomposite Materials science business.industry Mechanical Engineering Physics::Optics Metamaterial Dielectric Condensed Matter Physics Condensed Matter::Materials Science Magnetic anisotropy Ferromagnetism Mechanics of Materials Physics::Atomic and Molecular Clusters Optoelectronics General Materials Science business Plasmon Nanopillar |
| Zdroj: | Materials Today. 51:39-47 |
| ISSN: | 1369-7021 |
| Popis: | Combining plasmonic and magnetic properties, namely magneto-plasmonic coupling, inspires great research interest and the search for magneto-plasmonic nanostructure becomes considerably critical. Here we designed a nanopillar-in-matrix structure with core–shell alloyed nanopillars for both BaTiO3 (BTO)-Au0.5Co0.5 (AuCo) and BTO-Au0.25Cu0.25Co0.25Ni0.25 (AuCuCoNi) hybrid systems, i.e., ferromagnetic alloy cores (e.g., Co or CoNi) with plasmonic shells (e.g., Au or Au/Cu). These core–shell alloy nanopillars are uniformly embedded into a dielectric BTO matrix to form a vertically aligned nanocomposite (VAN) structure. Both hybrid systems present excellent epitaxial quality and interesting multi-functionality, e.g., high magnetic anisotropy, magneto-optical coupling response, tailorable plasmonic resonance wavelength, tunable hyperbolic properties and strong optical anisotropy. These alloyed nanopillars-in-matrix designs provide enormous potential for complex hybrid material designs with multi-functionality and demonstrate strong interface enabled magneto-plasmonic coupling along with plasmonic and magnetic performance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect