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Hyperfine Interactions

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Structural and magnetic characterization of (Zn1-x-yFexCoy)O

  • Lilian Felipe Silva Tupan
  • Marlon Ivan Valerio-Cuadros
  • Aline Alves Oliveira
  • Antônio Oliveira de Souza
  • Reginaldo Barco
  • Flávio Francisco Ivashita
  • Edson Passamani Caetano
  • Elisa Baggio Saitovitch
  • Andrea PaesanoJrEmail author
Article
  • 27 Downloads
Part of the following topical collections:
  1. Proceedings of the 16th Latin American Conference on the Applications of the Mössbauer Effect (LACAME 2018), 18-23 November 2018, Santiago de Chile, Chile

Abstract

In this investigation, we synthesized monophasic and nanostructured (Zn1-x-yFexCoy)O samples, with x + y = 0.05. These nanophases were characterized by X-ray diffraction, magnetization techniques, and Mössbauer spectroscopy. The analyzes revealed that doping ZnO with iron or cobalt induced a morphological change for the crystallites. The presence of cobalt in the matrix showed to enhance clustering of iron atoms and two different groups of ferric cations were identifyed diluted in the wurtzite matrix. (Zn1-x-yFexCoy)O has no magnetic order at RT but makes a transition from the paramagnetic to the spin-glass state with decreasing temperature, passing through three different magnetic regimes. The unit cell volume, remanence and coercive field of the (Zn1-x-yFexCoy)O solid system reached a maximum for co-doped samples.

Keywords

Fe-doped ZnO Co-doped ZnO DMS Spin-glass Mössbauer spectroscopy 

Notes

Supplementary material

10751_2019_1571_MOESM1_ESM.docx (237 kb)
ESM 1 (DOCX 236 kb)

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Lilian Felipe Silva Tupan
    • 1
  • Marlon Ivan Valerio-Cuadros
    • 1
  • Aline Alves Oliveira
    • 1
  • Antônio Oliveira de Souza
    • 2
  • Reginaldo Barco
    • 1
  • Flávio Francisco Ivashita
    • 1
  • Edson Passamani Caetano
    • 3
  • Elisa Baggio Saitovitch
    • 4
  • Andrea PaesanoJr
    • 1
    Email author
  1. 1.Departamento de FísicaUniversidade Estadual de MaringáMaringáBrazil
  2. 2.Universidade Federal do Oeste da BahiaBom Jesus da LapaBrazil
  3. 3.Universidade Federal do Espírito SantoVitóriaBrazil
  4. 4.Centro Brasileiro de Pesquisas FísicasRio de JaneiroBrazil

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