Journal of the Australian Ceramic Society

, Volume 55, Issue 1, pp 265–268 | Cite as

Concentration dependence of the Cr3+ ESR linewidth in barium titanate

  • R. S. de BiasiEmail author
  • M. L. N. Grillo


The concentration dependence of the electron spin resonance (ESR) linewidth of Cr3+ ions in chromium-doped barium titanate (BaTiO3) was investigated at room temperature for chromium concentrations between 0.10 and 2.00 mol%. According to previous studies, chromium substitutes Ti4+ sites in the lattice and its preferred valence state is Cr4+, which is ESR silent in the X-band. In the present work, the Cr3+ state was enhanced by codoping with Nb, as it has been done previously in a similar compound, SrTiO3. The results show that the concentration dependence of the ESR peak-to-peak linewidth and the relative intensity of the Cr3+ spectrum can be approximated by the theoretical equations ΔHpp = 3.30 + C1(1 − f)80 mT and I = C2f(1 − f)80, where f is the chromium concentration and C1 and C2 are constants. This suggests that the range of the exchange interaction between Cr3+ ions in barium titanate is about 0.96 nm.


Ceramics Electron spin resonance Barium titanate Chromium Niobium 


  1. 1.
    de Biasi, R.S., Grillo, M.L.N.: Electron magnetic resonance of diluted solid solutions of Gd3+ in BaTiO3. Mater. Res. 18, 288–291 (2015)CrossRefGoogle Scholar
  2. 2.
    Dang, N.V., Dung, N.T., Phong, P.T., Lee, I.-J.: Effect of Fe3+ substitution on structural, optical and magnetic properties of barium titanate ceramics. Physica B. 457, 103–107 (2015)CrossRefGoogle Scholar
  3. 3.
    Kweim, G.H., Lawson, A.C., Billings, S.J.L.: Structures of the ferroelectric phases of barium titanate. J. Phys. Chem. 97, 2368–2377 (1993)CrossRefGoogle Scholar
  4. 4.
    Böttcher, R., Erdem, E., Langhammer, H.T., Abicht, H.-P.: Incorporation of chromium into hexagonal barium titanate: an electron paramagnetic resonance study. J. Phys. Condens. Matter. 17, 2763–2774 (2005)CrossRefGoogle Scholar
  5. 5.
    La Mattina, F., Bednorz, J.G., Alvarado, S.F., Shengelaya, A., Muller, K.A., Keller, H.: Controlled oxygen vacancies and space correlation with Cr3+ in SrTiO3. Phys. Rev. B Condens. Matter. 80, 075122 (2009)CrossRefGoogle Scholar
  6. 6.
    de Biasi, R.S., Grillo, M.L.N.: Influence of chromium concentration on the electron magnetic resonance linewidth of Cr3+ in SrTiO3. Mater. Res. 15, 472–476 (2012)CrossRefGoogle Scholar
  7. 7.
    Kittel, C., Abrahams, E.: Dipolar broadening of magnetic resonance lines in magnetically diluted crystals. Phys. Rev. 90, 238–239 (1953)CrossRefGoogle Scholar
  8. 8.
    de Biasi, R.S., Fernandes, A.A.R.: The ESR linewidth of dilute solid solutions. J. Phys. C Solid State Phys. 16, 5481–5489 (1983)CrossRefGoogle Scholar
  9. 9.
    Kweu, G.H., Lawson, A.C., Billinge, S.J.L.: Structures of the ferroelectric phases of barium titanate. J. Phys. Chem. 97, 2368–2377 (1993)CrossRefGoogle Scholar
  10. 10.
    de Biasi, R.S., Grillo, M.L.N.: Electron spin resonance of chromia-yttria solid solutions. J. Phys. Chem. Solids. 66, 1806–1809 (2005)CrossRefGoogle Scholar
  11. 11.
    Anderson, P.W.: New approach to the theory of superexchange interactions. Phys. Rev. 115, 2–13 (1959)CrossRefGoogle Scholar

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© Australian Ceramic Society 2018

Authors and Affiliations

  1. 1.Seção de Engenharia de MateriaisInstituto Militar de EngenhariaRio de JaneiroBrazil
  2. 2.Instituto de FísicaUniversidade do Estado do Rio de JaneiroRio de JaneiroBrazil

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