A Potential Energy Landscape Study of the Amorphous-Amorphous Transformation in H$_2$O

Details A Potential Energy Landscape Study of the Amorphous-Amorphous Transformation in H$_2$O A Potential Energy Landscape Study of the Amorphous-Amorphous Transformation in H$_2$O

2003-06-05

arxiv.org/abs/cond-mat/0306114v1

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevLett.91.115504

We study the potential energy landscape explored during a compression-decompression cycle for the SPC/E (extended simple point charge) model of water. During the cycle, the system changes from low density amorphous ice (LDA) to high density amorphous ice (HDA). After the cycle, the system does not return to the same region of the landscape, supporting the interesting possibility that more than one significantly different configuration corresponds to LDA. We find that the regions of the landscape explored during this transition have properties remarkably different from those explored in thermal equilibrium in the liquid phase.

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