The total energy as a function of collective coordinates, , for upright and tilted structures are plotted. Two types of frequency spectrum are calculated:
Structure and Dynamics at a Dense Array of Hydrated Surface Groups: A Model for Interfacial Proton Transport in Fuel Cell Membranes Ata Roudgar, Sudha.
Ab initio Calculations of Interfacial Structure and Dynamics in Fuel Cell Membranes