|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||2016 Functional Nanomaterials: Emerging Nanomaterials and Techniques for 3D Architectures
||Ferroplasmons: Strong Plasmonic Resonances in Magnetic Nanoparticles
||Abhinav Malasi, Jingxuan Ge, Annette E Farah, Hernando Garcia, Gerd Duscher, Ramki Kalyanaraman
|On-Site Speaker (Planned)
Typical magnetic nanoparticles do not have strong resonant optical scattering properties in the visible range. If ferromagnetism and plasmonics could coexist in the nanoparticles it could lead to new and better functionalities, such as from the combination of localized surface plasmon resonance (LSPR) sensing with contributions from magnetic effects. Here we discuss our recent discovery of ferroplasmons which are strong plasmonic resonances in the visible range in Cobalt nanoparticles when in contact with silver (Ag) in the form of bimetallic nanoparticles. These bimetallic systems show interesting behaviors, including the suppression of Ag oxidation through a galvanic effect, enhanced LSPR sensitivity, and a strong Kerr rotation. We will also discuss the synthesis of these bimetallic particles and their properties in the context of symbiotic effects between the ferromagnetic and noble metal. The strong resonant interaction of light within ferromagnetic particles also opens a potential new route to plasmonically assisted magnetic recording.