An experimental criterion for the nano-to-bulk phase transition

作者：Krishna M Ghanashyam^*; Kapoor A K; Prasad M Durga; Srinivasan V

来源：Physica E: Low-Dimensional Systems and Nanostructures , 2010, 42(7): 1920-1922.

DOI：10.1016/j.physe.2010.02.027

• Nanostructures
• Phase transitions
• Phonons
• Quasicrystals

It is shown in this work that the transition from bulk-to-nanophase of a material is a first order phase transition. An experimental criterion for the onset of the nanophase is the occurrence of phonon confinement effects as determined from Raman or Brillouin light scattering experiments. A further consequence of the model presented is that quasicrystals are a natural subset of the nanophase as defined in the current work and should be treated as a sub-form of this phase.

• 出版日期2010-5