Guest-cage atomic interactions in a clathrate-based phase-change material.
basic_science · Level V
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- Record sourced from PubMed, PMID 24375618.
- Also identified by DOI 10.1002/adma.201304199.
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Abstract
New clathrate-based phase-change materials with cage-like structures incorporating Cs and Ba guest atoms, are reported as a means of altering crystallization and amorphization behavior by controlling 'guest-cage' interactions via intra-complex guest vibrational effects. Both a high resistance to spontaneous crystallization, and long retention of the amorphous phase are achieved, as well as a low melting energy. This approach provides a route for achieving cage-controlled semiconductor devices.