Activation Volume for Arsenic Diffusion in Germanium

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Activation Volume for Arsenic Diffusion in Germanium

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Title: Activation Volume for Arsenic Diffusion in Germanium
Author: Mitha, Salman; Aziz, Michael; Schiferl, David; Poker, David B.

Note: Order does not necessarily reflect citation order of authors.

Citation: Mitha, Salman, Michael J. Aziz, David Schiferl, and David B. Poker. 1996. Activation volume for arsenic diffusion in germanium. Applied Physics Letters 69(7): 922-924.
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Abstract: We have measured the effect of pressure on As diffusion in Ge. Diffusion anneals on ion-implanted samples were carried out in a high-temperature diamond anvil cell using fluid argon as a clean, hydrostatic pressure medium. At 575 °C over the pressure range 0.1–4 GPa, pressure slightly enhances the diffusivity, characterized by an activation volume of –1.7 ± 1.4 cm3/mole or –0.12 ± 0.10 times the atomic volume. The results call into question the prevailing view that diffusion of groups III, IV, and V elements are mediated entirely by vacancies. If diffusion of As is mediated entirely by vacancies then either the vacancy formation volume must be unexpectedly low or the energy of vacancy migration must be unexpectedly high.
Published Version: http://dx.doi.org/10.1063/1.116944
Other Sources: http://www.seas.harvard.edu/matsci/people/aziz/publications/mja087.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:2959838

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  • FAS Scholarly Articles [7218]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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