Polycrystalline materials, interfacial dynamics

Application of this construction reveals that the mobile particle motion at the NP interface indeed takes the form of strings, as in GF liquids [23] and the GB of polyciystalline materials [16,69] and we next characterize these structures more precisely to see how their geometry compares to their GF and GB counterparts. We will examine the nature of the collective motion and average local particle displacement dynamics of the Ni atoms in the interfacial region of NP using the same numerical metrologies as in our previous complementary study of the dynamics of GB in polycrystalline Ni, as described in Section II.D. 

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