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Impurity mapping in sulphide minerals using Time-resolved Ion Beam Induced Current imaging


Laird, JS and Johnson, BC and Ganesan, K and Kandasamy, S and Davidson, GJ and Borg, S and Ryan, CG, Impurity mapping in sulphide minerals using Time-resolved Ion Beam Induced Current imaging, Nuclear Instruments and Methods in Physics Research B. Beam Interactions With Materials and Atoms, 268, (11-12) pp. 1903-1910. ISSN 0168-583X (2010) [Refereed Article]

DOI: doi:10.1016/j.nimb.2010.02.095


The semiconducting properties and charge transport within natural minerals like pyrite are postulated to drive certain geochemical processes which can lead to precious metal ore genesis. In this paper we outline electrical measurements on mineral samples and present spatio-temporally resolved Ion Beam Induced Charge or Current studies on a Schottky pyrite junction. Au-Schottky contacts were fabricated in regions selected by thermoelectric and 4-point probe resistivity measurements. The complexity in charge transport due to impurity variations results in imaging contrast which is deemed important for fluid electrochemistry. The relevance of understanding charge collection in pyrite in the context of complex geochemical processes is briefly discussed. Crown Copyright © 2010.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geology
Research Field:Mineralogy and crystallography
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the earth sciences
UTAS Author:Davidson, GJ (Dr Garry Davidson)
ID Code:67978
Year Published:2010
Web of Science® Times Cited:6
Deposited By:Centre for Ore Deposit Research - CODES CoE
Deposited On:2011-03-08
Last Modified:2011-05-13

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