Wednesday, June 26, 2013

1306.5834 (Cristiano Nisoli et al.)

Quasi-One-Dimensional Thermal Breakage    [PDF]

Cristiano Nisoli, Douglas Abraham, Turab Lookman, Avadh Saxena
Breakage is generally understood in mechanical terms, yet nano-structures can rupture not only under external loads but also via thermal activation. Here we treat in a general framework the thermally induced breakage at the nano-scale for one-dimensional systems. We test it on a simple approximation and find that the probability of breakage controls distinct regimes, characterized by sharp crossovers and narrow peaks in the thermal fluctuations and specific heat. Our work provides predictions on clustering of new phases, of relevance in nano-fabrication.
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