Abstract
Room temperature angle-dispersive x-ray diffraction measurements on solid Ar up to reveal evidence of a structural phase transformation after stress relaxation by laser heating. Beyond , Ar exhibits the coexistence of fcc and hcp phases with an increasing hcp/fcc ratio, similar to the observation made recently on krypton and xenon. From the present results, we estimate the fcc-to-hcp transition to be completed at .
- Received 17 February 2006
DOI:https://doi.org/10.1103/PhysRevB.73.092106
©2006 American Physical Society