Article ID Journal Published Year Pages File Type
1684244 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2010 8 Pages PDF
Abstract

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.

Related Topics
Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
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