Squeezed Thermal Phonons Precurse Nonthermal Melting of Silicon as a Function of Fluence

A femtosecond-laser pulse can induce ultrafast nonthermal melting of various materials along pathways that are inaccessible under thermodynamic conditions, but it is not known whether there is any structural modification at fluences just below the melting threshold. Here, we show for silicon that in...

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Bibliographic Details
Main Authors: Eeuwe S. Zijlstra, Alan Kalitsov, Tobias Zier, Martin E. Garcia
Format: Article
Language:English
Published: American Physical Society 2013-01-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.3.011005