Enhanced magneto-optical effects in composite coaxial nanowires embedded with Ag nanoparticles

• Published in: Scientific reports Vol. 6; no. 1; p. 29170
• Main Authors: Liu, Qianwen, Zheng, Xuanli, He, Jialun, Wang, Weiping, Fu, Mingming, Cao, Yiyan, Li, Heng, Wu, Yaping, Chen, Ting, Zhang, Chunmiao, Chen, Xiaohong, Yu, Binbin, Li, Shuping, Kang, Junyong, Wu, Zhiming
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 11.07.2016; Nature Publishing Group
• Subjects: 639/301/1019/1021; 639/766/400/1101; Chemical vapor deposition; Electromagnetic fields; Humanities and Social Sciences; Metals; multidisciplinary; Nanoparticles; NANOSCIENCE AND NANOTECHNOLOGY; Nanowires; Particle size; Scanning electron microscopy; Science; Science & Technology - Other Topics; Science (multidisciplinary)
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/srep29170

Nanostructures decorated with noble metal nanoparticles (NPs) exhibit potential for use in highly sensitive optoelectronic devices through the localized surface plasmon resonance (LSPR) effect. In this study, Faraday rotation was significantly enhanced through the structural optimization of ferromagnetic (FM)/semiconductor composite nanostructures. Experimental and theoretical results revealed that the position of noble metal NPs significantly influenced the coupling of the LSPR-enhanced electromagnetic field with FM materials. Furthermore, nanostructures embedded with noble metals demonstrated an improved capability to efficiently use the electromagnetic field compared to other structures. The Faraday rotation of ZnO/Ag(NPs)/Fe was enhanced 58 fold compared to that of the ZnO(film)/Fe. This work provides a basis for the design of nanoarchitectures for miniaturized high-performance magneto-optical devices.