Synthesis Process Controlled of Semimagnetic Bi2-xMnxS3 Nanocrystals in a Host Glass Matrix

Synthesis Process Controlled of Semimagnetic Bi2-xMnxS3 Nanocrystals in a Host Glass Matrix

Author Silva, Ricardo Souza Google Scholar
Silva, Jéssica Terra Teodoro da Google Scholar
Rocha, Vinícius Rodrigues Google Scholar
Cano, Nilo Francisco Autor UNIFESP Google Scholar
Silva, Anielle Christine Almeida Google Scholar
Dantas, Noelio Oliveira Google Scholar
Institution Univ Fed Triangulo Mineiro
Universidade Federal de São Paulo (UNIFESP)
Universidade Federal de Uberlândia (UFU)
Abstract Semimagnetic Bi2-xMnxS3 nanocrystals (NCs) with a mean size of approximately 4.0 nm were successfully synthesized by fusion in a host glass and investigated by several experimental techniques. Transmission electron microscopy and atomic force microscopy/magnetic force microscopy images confirmed the growth of the Bi2-xMnxS3 NC samples, showing uniform distribution of the total magnetic moment in the nanocrystals. X-ray diffraction measurements revealed that the as-produced nanocrystals are single-phase, nanosized, and crystallized in the orthorrombic structure and that Mn2+-ions had replaced Bi3+-ions. Electron paramagnetic resonance (EPR) spectra of the doped samples showed six hyperfine lines associated with the S = 5/2 spin half-filled d-state and characteristic of Mn2+ ions. EPR spectra simulated compared fairly well with experimental results and indicated the incorporation of Mn2+ ions in the core and surface in Bi2-xMnxS3 NCs.
Language English
Sponsor Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
Rede Mineira de Quimica (RQ-MG)
Date 2014-08-14
Published in Journal of Physical Chemistry C. Washington: Amer Chemical Soc, v. 118, n. 32, p. 18730-18735, 2014.
ISSN 1932-7447 (Sherpa/Romeo, impact factor)
Publisher Amer Chemical Soc
Extent 18730-18735
Origin https://dx.doi.org/10.1021/jp5046657
Access rights Closed access
Type Article
Web of Science ID WOS:000340444500054
URI https://repositorio.unifesp.br/handle/11600/38090

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