DIELECTRIC RESPONSE IN AN ORDERED RECTANGULAR ARRAY OF AG NANOPARTICLES ON LINBO3

1,2 DE LA CRUZ Rosa María
Co-authors:
3 KANYINDA-MALU Clément 1 MUÑOZ SANTIUSTE Juan Enrique
Institutions:
1 Dpto. De Física, EPS, Universidad Carlos III de Madrid, Spain, rmc@fis.uc3m.es, jems@fis.uc3m.es
2 Instituto Universitario Gregorio Millán Balbany, Univ. Carlos III de Madrid, Spain
3 Dpto. de Economía Financiera y Contabilidad e Idioma Moderno, Universidad Rey Juan Carlos, FCSJ, Spain, clement.kanyindamalu@urjc.es
Conference:
9th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 18th - 20th 2017
Proceedings:
Proceedings 9th International Conference on Nanomaterials - Research & Application
Pages:
21-26
ISBN:
978-80-87294-81-9
ISSN:
2694-930X
Published:
8th March 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
47 views / 19 downloads
Abstract

An ordered array of silver (Ag) nanoparticles (NPs) on the uniaxial LiNbO3 material is theoretically analyzed under an extended Maxwell-Garnett (M-G) effective approximation to account on the anisotropic effects. Structural parameters such as NPs radius and interparticle distances in the array play a key-role in the evaluation of the dielectric response in both parallel and perpendicular directions. In fact, the negative epsilon (NE) condition is satisfied for specific values of the above parameters. This condition defines an interval of energies, called NE range. We compare these results to that obtained for a random distribution of Ag NPs embedded in LiNbO3 matrix.

Keywords: Ferroelectric materials, metallic nanoparticles, extended Maxwell-Garnett theory
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