Room temperature paramagnetism of ZnO : Mn films grown by RF-sputtering

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • F. Oliveira
  • M. F. Cerqueira
  • M. I. Vasilevskiy
  • T. Viseu
  • J. Ayres De Campos
  • And 4 others
  • A. G. Rolo
  • J. S. Martins
  • N. A. Sobolev
  • E. Alves

Detail(s)

Original languageEnglish
Pages (from-to)4612-4614
Journal / PublicationThin Solid Films
Volume518
Issue number16
Publication statusPublished - 1 Jun 2010
Externally publishedYes

Abstract

ZnO:Mn transparent thin films (thickness <1 μm) with the Mn contents ranging from 1.8 to 3.25 at.% were grown by RF magnetron co-sputtering. The films are nanocrystalline, with wurtzite-structure grains of a typical size of 20 nm and with a preferential orientation of the c-axis perpendicular to the surface. According to the Raman spectroscopy data, Mn mostly substitutes Zn in the lattice sites. In spite of these factors, the nanostructure and the Mn(Zn) substitution, that are considered favorable for ferromagnetism in this material, both magnetic resonance and Faraday effect measurements show paramagnetic behavior of the ZnO:Mn films and the absence of ferromagnetic order at room temperature. © 2009 Elsevier B.V. All rights reserved.

Research Area(s)

  • Faraday effect, Magnetic resonance, Mn-doping, ZnO

Citation Format(s)

Room temperature paramagnetism of ZnO : Mn films grown by RF-sputtering. / Oliveira, F.; Cerqueira, M. F.; Vasilevskiy, M. I.; Viseu, T.; De Campos, J. Ayres; Rolo, A. G.; Martins, J. S.; Sobolev, N. A.; Alves, E.

In: Thin Solid Films, Vol. 518, No. 16, 01.06.2010, p. 4612-4614.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal