Advertisement

Syntheses and Properties of HgBa2CaCu2O6+δ with Various Oxygen Contents

  • A. Fukuoka
  • A. Tokiwa-Yamamoto
  • M. Itoh
  • R. Usami
  • S. Adachi
  • H. Yamauchi
  • K. Tanabe
Conference paper

Abstract

We synthesized nearly single phase HgBa2CaCu2O6+δ samples with various oxygen contents and studied the relations among the oxygen content, Tc, lattice parameter and the thermoelectric power. We succeeded in obtaining samples with a wide doping range from underdoped to overdoped states(Tc=90~127K) by annealing under a high oxygen pressure as well as annealing with reducing agent(Zr metal). The Tc showed a “bell shaped” dependence on the oxygen content y and a maximum at y~6. 21. A systematic increase in the hole density with y was also confirmed by the variation in the Seebeck coefficient.

Keywords

Oxygen Content Seebeck Coefficient Thermoelectric Power Excess Oxygen Hole Density 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Reference

  1. [1]
    S. N. Putilin, E. V. Antipov, O. Chmaissem and M. Marezio, Nature 362(1993)323CrossRefGoogle Scholar
  2. [2]
    A. Shcilling, M. Cantoni, J. D. Guo and H. R. Ott, Nature 363(1993) 56ADSCrossRefGoogle Scholar
  3. [3]
    B. Morosin, E. L. Venturini, J. E. Schirber, P. P. Newcomer, Physica C 226(1994)175ADSCrossRefGoogle Scholar
  4. [4]
    A. Fukuoka, M. Karppinen, N. Seiji, J. Valo, A. Kareivia, L. Niinistö, M Leskelä, N. Koshizuka and H. Yamauchi. , in pressGoogle Scholar
  5. [5]
    A. Fukuoka, A. Tokiwa-Yamamoto, M. Ito, R. Usami, K. Isawa, S. Adachi and H. Yamauchi, Advances in Superconductivity VII. Springer-Verlag. Tokyo, P. 307Google Scholar

Copyright information

© Springer Japan 1996

Authors and Affiliations

  • A. Fukuoka
    • 1
  • A. Tokiwa-Yamamoto
    • 1
  • M. Itoh
    • 1
  • R. Usami
    • 1
  • S. Adachi
    • 1
  • H. Yamauchi
    • 1
  • K. Tanabe
    • 1
  1. 1.SRL-ISTECKoto-ku, Tokyo 135Japan

Personalised recommendations