Lattice Mode Study of La2CuO4-y Implanted with Sr

Abstract

Dramatic implantation-induced changes in the Raman and infrared spectra of polycrystalline samples of La2CuO4-y are reported for implantation of Sr in the fluence range 0.5 to 1.5 × 1016/cm2. The Raman and ir-reflectance spectra of the Sr implanted material reveal disorder-induced lines corresponding to breakdown of selection rules and to non-zone-center phonon modes. Whereas the main features in the Raman spectra of the implanted sample are broad disorder-induced lines centered at ∼ 560 ± 5 cm−1, reststrahlen lineshapes are observed above ∼ 800 cm−1 in the ir-reflectance spectra. After thermal annealing (550°C), the multiphonon lines in the ir spectra diminish, and the disorder-induced lines in the Raman spectra split to form well-resolved, sharper lines at 530 and 580 cm−1, identified with maxima in the phonon density of states. The sensitivity and complementarity of Raman and infrared spectroscopy to implantation-induced disorder and subsequent partial recovery by thermal annealing suggest that these techniques can be used to characterize sensitively disorder in ion implanted La2CuO4-y high Tc, materials.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    G.J. Clark, A.O. Marwick, R.H. Koch and R.B. Laibowitz, Appl. Phys. Lett. 51, 139 (1987); G.J. Clark, F.K. LeGoues, A.O. Marwick, R.B. Laibowitz and R.H. Koch, Appl. Phys. Lett. 51, 1462 (1987)

    CAS  Article  Google Scholar 

  2. 2.

    J.G. Bednorz and K.A. Müller, Ζ. Physik Β 64, 189 (1986); R.J. Cava, B. Batlogg, R.B. van Dover, D.W. Murphy, S. Sunshine, T. Siegrist, J.P. Remeika, E.A. Rietman, S. Zahurak and G.P. Espinosa Phys. Rev. Lett. 58, 1676 (1987); C.W. Chu, P.H. Hor, R.L. Meng, L. Gao, Z.J. Huang, and Y.O. Wang Phys. Rev. Lett. 58, 405 (1987); S. Uchida, H. Takagi, K. Kitazawa and S. Tanaka, Jpn. J. Appl. Phys. 26, L1 (1987).

    CAS  Article  Google Scholar 

  3. 3.

    P.J. Picone, H.J. Jenssen and D.R. Gabbe, J. Crystal Growth (accepted for publication).

  4. 4.

    J.P. Biersack and L.G. Haggmark, Nucl. Instr. and Meth. 174, 257 (1980).

    CAS  Article  Google Scholar 

  5. 5.

    A. Lusnikov, S.P. Withrow, H.J. Jimenez-Gonzalez, M.S. Dresselhaus, and G. Dresselhaus (unpublished).

  6. 6.

    S. Blumenroeder, E. Zirngiebl, J.D. Thompson, P. Killough, J.L. Smith, and Z. Fisk Phys. Rev. Β 35, 8840 (1987).

    CAS  Article  Google Scholar 

  7. 7.

    I. Ohana, Y.C. Liu, P.J. Picone, A. Lusnikov, M.S. Dresselhaus, G. Dresselhaus, H.J. Zeiger, A. Strauss, H. Jenssen, D.R. Gabbe (unpublished).

  8. 8.

    G.L. Doll, J. Steinbeck, G. Dresselhaus, M.S. Dresselhaus, A.J. Strauss, H.J. Zeiger Phys. Rev. Β (accepted for publication).

  9. 9.

    S. Tajima, S. Uchida, H. Ishii, H. Takagi, and S. Tanaka (unpublished).

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to I. Ohana.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Ohana, I., Doll, G.L., Lusnikov, A. et al. Lattice Mode Study of La2CuO4-y Implanted with Sr. MRS Online Proceedings Library 100, 243 (1987). https://doi.org/10.1557/PROC-100-243

Download citation