An EPR study of Er3+ impurities in RbTiOPO4 single crystals

  • D. Bravo
  • A. Martín
  • J. J. Carvajal
  • M. Aguiló
  • F. Díaz
  • F. J. López
Solids and Liquids


An electron paramagnetic resonance (EPR) study of Er3+ ions in single crystals of RbTiOPO4 (RTP) is presented. The EPR spectra show the existence of six different Er3+ centres. The g-matrix has been determined for these centres from the analysis of the angular dependences of the spectrum in three planes of the crystal. The study supports that erbium can enter the Rb+ and Ti4+ low-symmetry sites of RTP. This conclusion differs from those for KTP:Er3+ and RTP codoped with Nb and Er. The different occupancies found for Er in these various crystals is suggested to be due to the differences in Er concentration.


76.30.Kg Rare-earth ions and impurities 42.70.Mp Nonlinear optical crystals 


  1. M.E. Hagerman, K.R. Poeppelmeier, Chem. Mater. 7, 602 (1995) CrossRefGoogle Scholar
  2. M.N. Satyanarayan, A. Deepthy, H.L. Bhat, Crit. Rev. Solid State Mater. Sci. 24, 103 (1999) CrossRefADSGoogle Scholar
  3. J.J. Carvajal, R. Solé, Jna. Gavaldà, J. Massons, M. Aguiló, F. Díaz, Optical Materials 24, 425 (2003) CrossRefADSGoogle Scholar
  4. P.C. Becker, N.A. Olsson, J.R. Simpson, Erbium-Doped Fiber Amplifiers: Fundamentals and Technology, (Academic Press, San Diego, 1999) Google Scholar
  5. J.M. Gaite, J.F. Stenger, Y. Dusausoy, G. Marnier, H. Rager, J. Phys.: Condens. Matt. 3, 7877 (1991) CrossRefADSGoogle Scholar
  6. S.W. Ahn, S.H. Choh, J. Phys.: Condens. Matt. 11, 3193 (1999) CrossRefADSGoogle Scholar
  7. A.B. Vassilikou-Dova, S. Jansen, F. Wallrafen, G. Lehmann, Z. Naturforsch. A 44, 711 (1989) Google Scholar
  8. S. Han, J. Wang, Y. Xu, Y. Liu, J. Wey, J. Phys.: Condens. Matt. 4, 6009 (1992) CrossRefADSGoogle Scholar
  9. I.N. Geifman, A.N. Usov, P.G. Nagornyi, Phys. Stat. Sol. B 172, K73 (1992) Google Scholar
  10. D. Bravo, M.J. Martín, Jna. Gavaldà, F. Díaz, C. Zaldo, F.J. López, Phys. Rev. B 50, 16224 (1994) CrossRefADSGoogle Scholar
  11. D. Bravo, X. Ruiz, F. Díaz, F.J. López, Phys. Rev. B 52, 3159 (1995) CrossRefADSGoogle Scholar
  12. N.Y. Garces, K.T. Stevens, L.E. Halliburton, J. Appl. Phys. 87, 8682 (2000) CrossRefADSGoogle Scholar
  13. D. Bravo, A. Martín, J.J. Carvajal, M. Aguiló, F. Díaz, F.J. López, J. Phys.: Condens. Matt. 18, 6655 (2006) CrossRefADSGoogle Scholar
  14. I.N. Geifman, I.S. Golovina, P.G. Nagornyi, Phys. Solid State 40, 491 (1998) CrossRefADSGoogle Scholar
  15. M.A. Laruhin, V.N. Efimov, V.A. Nazarova, G.R. Bulka, Appl. Magn. Reson. 15, 247 (1998) CrossRefGoogle Scholar
  16. Y. Jiang, L.E. Halliburton, M. Roth, M. Tseitlin, N. Angert, Phys. Stat. Sol. B 242, 2489 (2005) CrossRefADSGoogle Scholar
  17. J.J. Carvajal, R. Solé, Jna. Gavaldà, J. Massons, M. Rico, C. Zaldo, M. Aguiló, F. Díaz, J. Alloys, Compounds 323–324, 231 (2001) Google Scholar
  18. J.J. Carvajal, J.L. García-Muñoz, R. Solé, Jna. Gavaldà, J. Massons, X. Solans, F. Díaz, M. Aguiló, Chem. Mater. 15, 2338 (2003) CrossRefGoogle Scholar
  19. C. Zaldo, M. Aguiló, F. Díaz, H. Loro, J. Phys.: Condens. Matt. 8, 10693 (1996) CrossRefADSGoogle Scholar
  20. M. Rico, C. Zaldo, J. Massons, F. Díaz, J. Phys.: Condens. Matt. 10, 10101 (1998) CrossRefADSGoogle Scholar
  21. C. Zaldo, M. Rico, J.J. Carvajal, F. Díaz, Opt. Mater. 13, 175 (1999) CrossRefADSGoogle Scholar
  22. P.A. Thomas, A.M. Glazer, B.E. Watts, Acta Cryst. B 46, 333 (1990) CrossRefGoogle Scholar
  23. P.A. Thomas, S.C. Mayo, B.E. Watts, Acta Cryst. B 48, 401 (1992) CrossRefGoogle Scholar
  24. A. Abragam, B. Bleaney, Electron Paramagnetic Resonance of Transition Ions (Clarendon/Oxford University Press, New York, 1970) Google Scholar
  25. J.R. Pilbrow, M.R. Lowrey, Rep. Prog. Phys. 43, 433 (1980) CrossRefADSGoogle Scholar

Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  • D. Bravo
    • 1
  • A. Martín
    • 2
  • J. J. Carvajal
    • 3
  • M. Aguiló
    • 3
  • F. Díaz
    • 3
  • F. J. López
    • 1
  1. 1.Departamento Física de MaterialesUniversidad Autónoma de MadridMadridSpain
  2. 2.Departamento Física e Instalaciones, ETS ArquitecturaUniversidad Politécnica MadridMadridSpain
  3. 3.Física i Cristallografia de Materials (FiCMA), Universitat Rovira i Virgili (URV)TarragonaSpain

Personalised recommendations