Skip to main content
SpringerLink
Log in

Polaronic optical absorption in semiconducting and superconducting oxides

  • HITC—Transport, Thermodynamic Properties, Electron-Phonon Coupling
  • Published:
Czechoslovak Journal of Physics Aims and scope

Abstract

The infrared and Raman spectra of High-Tc superconductors (HCTS) in the normal phase exhibit vibrational modes (IRAV) which are superimposed to a Drude background from high-mobility carriers. In the far infrared the IRAV appear as well-resolved peaks, shifted in energy with respect to the normal modes of the lattice. In the midinfrared they are grouped into a broad polaron band peaked at about 0.1 eV. At corresponding energies, in the semiconducting phase one observes bands that are unambiguously identified as polaronic. Moreover, the IRAV show remarkable correspondences with the peaks in the Eliashberg function as determined in the same systems by tunneling measurements. These results point towards the existence of two types of carriers in HCTS, one at least being polaronic in nature.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. P. Calvani, M. Capizzi, S. Lupi, P. Maselli, A. Paolone and P. Roy, Phys. Rev. B 53 (1996) 2756, and references therein.

    Article  ADS  Google Scholar 

  2. V. N. Denisov, C. Taliani, A. G. Mal’shukov, V. M. Burlakov, E. Schonherr, and G. Ruani, Phys. Rev. B 48 (1993) 16714.

    Article  ADS  Google Scholar 

  3. P. Calvani, P. Dore, S. Lupi, P. Maselli, P. G. Medaglia, A. Paolone, and S-W. Cheong, to be published

  4. D. Emin, Phys. Rev. B 48 (1993) 13691, and references therein.

    Article  ADS  Google Scholar 

  5. K. Yonemitsu, A. R. Bishop, and J. Lorenzana, Phys. Rev. B 47 (1993) 8065.

    Article  ADS  Google Scholar 

  6. P. Calvani, M. Capizzi, S. Lupi, and G. Balestrino, Eurphys. Lett. 31 (1995) 473.

    Article  Google Scholar 

  7. R. Hughes, Y. Lu, T. Timusk, and J. S. Preston, Phys. Rev. B 47 (1993) 985.

    Article  ADS  Google Scholar 

  8. K. Kamaras et al., Phys. Rev. Lett. 64 (1990) 84.

    Article  ADS  Google Scholar 

  9. Q. Huang, J. F. Zasadzinski, N. Tralshawala, K. E. Gray, D. G. Hinks, J. L. Peng, and R. L. Greene, Nature 347 (1990) 369.

    Article  ADS  Google Scholar 

  10. R. Aoki et al., to appear in “Spectroscopic Studies of Superconductors”, ed. by I. Bozovic and D. Van der Marel (SPIE, Bellingham 1996)

    Google Scholar 

  11. J. Ranninger, J. M. Robin, and M. Eschrig, Phys. Rev. Lett. 74 (1995) 4027.

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Dipartimento di Fisica, Universitá di Roma La Sapienza, P.le A. Moro 2, 00185, Roma, Italy

    P. Calvani, M. Capizzi, S. Lupi, P. Maselli & B. Ruzicka

  2. Unità di Roma I, Istituto Nazionale di Fisica della Materia, Roma, Italy

    P. Calvani, M. Capizzi, S. Lupi, P. Maselli & B. Ruzicka

Authors
  1. P. Calvani
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. Capizzi
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. S. Lupi
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. P. Maselli
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. B. Ruzicka
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Calvani, P., Capizzi, M., Lupi, S. et al. Polaronic optical absorption in semiconducting and superconducting oxides. Czech J Phys 46 (Suppl 3), 1247–1248 (1996). https://doi.org/10.1007/BF02562738

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02562738

Keywords

Search

Navigation