Journal of Materials Science

, Volume 42, Issue 13, pp 4753–4756 | Cite as

Annealing kinetics of gold and iron–gold complex

  • Akbar AliEmail author
  • Abdul Majid


Thermally induced defects in heat treated and then quenched in water n-silicon samples have been studied using deep level transient spectroscopy. Two deep levels at energies E c-0.55 eV, and E c-0.23 eV are observed in high concentration. The emission rate signature and annealing characteristics of energy state E c-0.55 eV identify it as Au(A). During annealing a level emerges at energy position E c-0.35 eV. This level has been identified as Au–Fe complex. Au(A) and Au–Fe showed an interesting reversible reaction in temperature range 175 °C–325 °C which follows the following theoretical relation that adds a new parameter in identifying Au(A) and Au–Fe complex.
$$ y = y_{\hbox{0}}\; \pm \;{\hbox{(2}}A{\hbox{/}}\pi {\hbox{)[}}W{\hbox{/\{4(}}x - x_{\hbox{c}} {\hbox{)}}^{\hbox{2}} + W^{\hbox{2}} {\hbox{\}]}}{\hbox{.}} $$
It is also noted that E c-0.55 eV and E c-0.23 eV contribute to the formation of Au–Fe complex.


Emission Rate Energy Position Deep Level Transient Spectroscopy Isochronal Annealing Gold Complex 
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Pakistan Science Foundation (PSF) and Higher education commission (HEC) provided partial support to execute this project.


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Department of Physics, Advance Materials Physics LabQuaid-i-Azam UniversityIslamabadPakistan

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