Journal
PHYSICAL REVIEW LETTERS
Volume 98, Issue 13, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.98.135502
Keywords
-
Categories
Funding
- NERC [NE/C515698/1] Funding Source: UKRI
- Natural Environment Research Council [NE/C515698/1] Funding Source: researchfish
Ask authors/readers for more resources
We study the response of a radiation-amorphized material to high pressure. We have used zircon ZrSiO4 amorphized by natural radiation over geologic times, and have measured its volume under high pressure, using the precise strain-gauge technique. On pressure increase, we observe apparent softening of the material, starting from 4 GPa. Using molecular dynamics simulation, we associate this softening with the amorphous-amorphous transformation accompanied by the increase of local coordination numbers. We observe permanent densification of the quenched sample and a nontrivial pressure window at high temperature. These features point to a new class of amorphous materials that show a response to pressure which is distinctly different from that of crystals.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available