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Title: Effect of combined local variations in elastic and inelastic energy losses on the morphology of tracks in ion-irradiated materials

A judicious choice of irradiation parameters and experimental methodology allowed the visualization of the tracks created by swift heavy ions in pyrochlores over the entire ion trajectories. Several peculiarities were observed: a layered structure of tracks composed of an amorphous core surrounded by a strained crystalline envelope, a change of the track diameter as a function of the ion slowing down, a loss of parallelism of tracks, a transformation from continuous to discontinuous regime, and an increasing contribution of elastic collisions at large depths. These observations are compared to the respective amount of electronic and nuclear energy losses.
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Publication Date:
OSTI Identifier:
Report Number(s):
34930; KP1704020
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Acta Materialia, 61(12):4669-4675
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org:
Country of Publication:
United States
Correlation; track; morphology; with; ion; energy; loss; pyrochlores; ; Environmental Molecular Sciences Laboratory