Skip to main content
SpringerLink
Log in

The Study of Hole Distribution in High-Tc Tl- and Hg-based 1212 Type Cuprates via High-Resolution X-Ray Absorption Near Edge Structure

  • Published:
Journal of Superconductivity Aims and scope Submit manuscript

Abstract

High resolution O K-edge and Cu L3-edge X-ray absorption near-edge-structure (XANES) spectra of the high-Tc cuprates of (Tl0.5Pb0.5)Sr2(Ca1−xYx)Cu2O7 (Tl-1212) and (Hg0.5Pb0.5)Sr2(Ca1−xYx)Cu2O7 (Hg-1212) in powder form were measured using a bulk sensitive total-fluorescence-yield technique. Near the O 1s edge, the pre-edge peak with maxima at ∼ 528.3 eV is ascribed to the transitions to O 2p holes located in the CuO2 planes. The intensity of this pre-edge peak increases with increasing doping level of Ca2+ into the Y3+ sites in Tl-1212 and Hg-1212. In the Cu L-edge absorption spectra, high-energy shoulders at around 933 eV are attributed to the transitions to the Cu(2p3/2)−13d10L states in the CuO2 layers, where L denotes the O 2p ligand hole. The behavior of these shoulders in Tl-1212 and Hg-1212 correlates with that of the pre-edge peak at ∼ 528.3 eV in the O K-edge absorption spectra. The results can lead us to understand the hole distribution in high-Tc cuprates which will give a direction to find new high-Tc materials.

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. J. B. Torrance, Y. Tokura, A. I. Nazzal, A. Bezinge, T.C. Huang, and S.S.P. Parkin, Phys. Rev. Lett. 61, 1127 (1988).

    Article  ADS  Google Scholar 

  2. R. S. Liu and P. P. Edwards, Mater. Sci. Forum 130 435 (1993).

    Article  Google Scholar 

  3. S. F. Hu, D. A. Jefferson, R. S. Liu, and P. P. Edwards, J. Solid State Chem. 103, 280 (1993).

    Article  ADS  Google Scholar 

  4. J. M. Chen, S.C. Chung, and R.S. Liu, Solid State Commu. 99, 493 (1996).

    Article  ADS  Google Scholar 

  5. N. Nucker, J. Fink, J. C. Fuggle, P. J. Durham, and W. M. Temmerman, Phys. Rev. B 37, 5158 (1988).

    Article  ADS  Google Scholar 

  6. E. Pellegrin, J. Fink, C.T. Chen, Q. Xiong, Q. M. Lin, and C.W. Chu, Phys. Rev. B 53, 2767(1996).

    Article  ADS  Google Scholar 

  7. M. Grioni, J. B. Goedkoop, R. Schoorl, F. M. F. de Groot, J. C. Fuggle, F. Schafers, E. E. Koch, G. Rossi, J. M. Esteva, and R. C. Karnatak, Phys. Rev.B 39, 1541 (1989).

    Article  ADS  Google Scholar 

  8. A. Bianconi, A. Congiu Castellano, M. De Santis, P. Rudolf, P. Lagarde, A. M. Flank, and A. Marcelli, Solid State Commun. 63, 1009 (1987).

    Article  ADS  Google Scholar 

  9. D. D. Sarma, O. Strebel, C. T. Simmons, U. Neukirch, and G. Kaindl, Phys. Rev. B 36, 8285 (1988).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemistry, National Taiwan University, Taipei, Taiwan, China

    R. S. Liu

  2. Synchrotron Radiation Research Center, Hsinchu, Taiwan, China

    J. M. Chen

Authors
  1. R. S. Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. J. M. Chen
    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

Liu, R.S., Chen, J.M. The Study of Hole Distribution in High-Tc Tl- and Hg-based 1212 Type Cuprates via High-Resolution X-Ray Absorption Near Edge Structure. Journal of Superconductivity 11, 53–57 (1998). https://doi.org/10.1023/A:1022625727785

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1022625727785

Search

Navigation