Analysis of the Mobility of the Electronic Defects in Co1-δ0

  • G. Petot-Ervas
  • P. Ochin
  • T. O. Mason
Part of the NATO ASI Series book series (NSSB, volume 129)


Analysis was made of the temperature and composition dependence of hole mobility in Co0 via a comparative study of conductivity and thermoelectric coefficient. The conductivity at constant thermopower appears to be activated. However the magnitude (≲0.1 eV) does not permit unambiguous confirmation of conduction mechanism. The oxygen exponents for conductivity and thermopower are, within experimental uncertainty, identical, i.e. no detectable composition dependence of the mobility. The values of the oxygen exponents obtained are consistent with defect clustering at high \({P_{{O_2}}}\).


Oxygen Partial Pressure Conduction Mechanism Experimental Uncertainty Composition Dependence Hole Mobility 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    C.R.A. Catlow and A.M. Stoneham,J. Am. Ceram. Soc. 64:234 (1981),CrossRefGoogle Scholar
  2. 2.
    J. Nowotny, I. Sikora, and M. Rekas,J. Electrochem. Soc. 131:94 (1984).CrossRefGoogle Scholar
  3. 3.
    H.-C. Chen, E. Gartstein, and T. O. Mason,J. Phys. Chem. Solids 43:991 (1982).ADSCrossRefGoogle Scholar
  4. 4.
    G. Petot-Ervas, P. Ochin, and B. Sossa,Solid State Ionics 12: 295 (1984).CrossRefGoogle Scholar
  5. 5.
    R. Dieckmann,Z. Phys. Chem. N.F. 107:189 (1977).CrossRefGoogle Scholar
  6. 6.
    B. Fisher and J. B. Wagner,J. Appl. Phys. 38:3838 (1967).ADSCrossRefGoogle Scholar
  7. 7.
    A. J. Bosman and C. Crevecoeur,J. Phys. Chem. Solids 30:1151 (1969).ADSCrossRefGoogle Scholar
  8. 8.
    H. L. Tuller and A. S. Nowick,J. Phys. Chem. Solids 38:859 (1977).ADSCrossRefGoogle Scholar
  9. 9.
    E. M. Logothetis and J. K. Park,Solid State Commun. 43: 543 (1982).ADSCrossRefGoogle Scholar
  10. 10.
    D. W. Gridges, J.P. Baur and W. M. Fassel, J. Electrochem. Soc. 103:619 (1956).CrossRefGoogle Scholar
  11. 11.
    N. L. Peterson and W. K. Chen,J. Phys. Chem. Solids 43:29 (1982).ADSCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • G. Petot-Ervas
    • 1
  • P. Ochin
    • 1
  • T. O. Mason
    • 2
  1. 1.P.M.T.M. LaboratoireC.N.R.S.VilletaneuseFrance
  2. 2.Department of Materials Science and EngineeringNorthwestern UniversityEvanstonUSA

Personalised recommendations