Physics – Condensed Matter – Materials Science
Scientific paper
2011-03-17
CHINESE JOURNAL OF PHYSICS VOL. 49, NO.1, p.141-150 (2011)
Physics
Condensed Matter
Materials Science
Phonons2010 conference, Taiwan
Scientific paper
Intense ultrafast laser excitation can produce transient states of condensed matter that would otherwise be inaccessible. At high excitation level, the interatomic forces can be altered resulting in an unusual lattice dynamics. Here we report the study of coherent lattice dynamics in Bi made for various excitation levels at helium temperature. We demonstrate that under certain conditions the fully symmetric phonons of large amplitude exhibit anomalous decay and phase rigidity, both of which possibly signaling the attainment of transient supersolid state.
Lebedev M. V.
Misochko Oleg V.
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