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Metal Isotope Fractionation Induced by Fast Ion Conduction in Natural and Synthetic Wire Silver

Anderson, Calvin J
http://orcid.org/0000-0002-0639-0172
http://rave.ohiolink.edu/etdc/view?acc_num=miami1532606440752015

Abstract Details

2018, Master of Science, Miami University, Geology and Environmental Earth Science.
An unusual metal isotope fractionation has been observed in association with the growth of wire silver, whose unique texture and morphology can be explained by superionic conduction of Ag+ in Ag2S. This constitutes the first recognition of mass migration by fast ion conduction in nature. Stable Ag isotope analysis revealed natural wire silver is normally enriched in the heavy isotope 109Ag, while common fractionation mechanisms would predict the opposite. In synthetic wires grown at high temperature (>450°C), this fractionation is amplified by an order of magnitude more than expected by any known isotope effect. This may indicate a previously unrecognized isotope fractionation mechanism associated with superionic conductors in nature and in general, which would have important implications for the geochemistry of ore deposits, as well as fast-ion technologies including atomic switches and solid-state ion batteries.
John Rakovan (Advisor)
Mark Krekeler (Committee Member)
Elisabeth Widom (Committee Member)
29 p.
Geochemistry; Mineralogy
Ag isotope fractionation; superionic conduction; mineral aggregate growth; conductive bridging random access memory

Recommended Citations

Citations

  • Anderson, C. J. (2018). Metal Isotope Fractionation Induced by Fast Ion Conduction in Natural and Synthetic Wire Silver [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1532606440752015

    APA Style (7th edition)

  • Anderson, Calvin. Metal Isotope Fractionation Induced by Fast Ion Conduction in Natural and Synthetic Wire Silver. 2018. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1532606440752015.

    MLA Style (8th edition)

  • Anderson, Calvin. "Metal Isotope Fractionation Induced by Fast Ion Conduction in Natural and Synthetic Wire Silver." Master's thesis, Miami University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=miami1532606440752015

    Chicago Manual of Style (17th edition)

miami1532606440752015
168
© 2018, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.