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Mössbauer investigation of maghemite-based glycolic acid nanocomposite |
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| Authors: | J. G. Santos L. B. Silveira A. C. Oliveira V. K. Garg B. M. Lacava A. C. Tedesco P. C. Morais |
| Affiliation: | 1. Departamento de Ciências Exatas e da Natureza, Funda??o Universidade Federal de Rond?nia, Ji-Paraná, RO, 78961-970, Brazil 2. Instituto de Física, Universidade de Brasília, Núcleo de Física Aplicada, Brasília, DF, 70910900, Brazil 3. FFCLRP-USP, Universidade de S?o Paulo, Preto Ribeir?o, SP, 14040-903, Brazil |
| Abstract: | Transmission electron microscopy, X-ray diffraction and Mössbauer spectroscopy were used in the characterization of a nanocomposite containing magnetic nanoparticles dispersed in a glycolic acid-based template. Maghemite nanoparticles were identified as the iron oxide phase dispersed in the polymeric template. From the low-temperature Mössbauer data the amount of the iron-based, non-magnetic material at the nanoparticle surface was estimated as roughly one monolayer in thickness. |
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