Cubic to tetragonal phase transformation in cold-compressed Pd nanocubes.
basic_science · Level V
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- Record sourced from PubMed, PMID 18237151.
- Also identified by DOI 10.1021/nl0731217.
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Abstract
Pd nanocubes with an average side length of approximately 10 nm were compressed up to 24.8 GPa in a diamond-anvil cell (DAC). In situ synchrotron X-ray diffraction was used to monitor structural changes, and a face-centered cubic (fcc) to face-centered tetragonal (fct) distortion was observed for the first time. This novel discovery not only provides new insights into the pressure-induced behavior of faceted nanocrystals of palladium and other noble metals but also gives guidance for finding new phases in close-packed metals.