Cechoslovackij fiziceskij zurnal B

, Volume 14, Issue 3, pp 176–188 | Cite as

Change of absolute thermoelectric power of gold and platinum due to lattice defects

  • J. Polák
Article
Received:

Abstract

The temperature dependence of the extra-thermoelectric power of gold and platinum after quenching or after plastic deformation was measured in the temperature range from −190°C to 20°C. It was found that dislocations raise the absolute thermoelectric power of gold, whereas vacancies reduce it. In platinum both kinds of defects reduce the absolute value of the thermoelectric power in the whole range of temperatures.

Gold was quenched from different temperatures into water and the change of electrical resistivity and of thermoelectric power was simultaneously measured. The extra-thermoelectric powerΔS varies directly with the concentration of vacancies. Its value is given by the relationΔS/c=−1·08 μV/(grad at. % vac.) The activation energy of the formation of lattice vacancies in gold wasE F =(0·93±0·14) eV.

Keywords

Gold Activation Energy Platinum Plastic Deformation Electrical Resistivity 
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.
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Copyright information

© Nakladatelstvi Československé akademie véd 1964

Authors and Affiliations

  • J. Polák
    • 1
  1. 1.Institute of Solid State PhysicsCzechosl. Acad. Sci.Prague

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