@inproceedings{bibcite_1197, author = {Ricelle Pari{\~n}as and Cristine D. Villagonzalo}, title = {Pre-collision dynamics of short 1D anharmonic chains}, abstract = {
This paper investigates the dynamics of short one-dimensional lattices having a temperature gradient. An anharmonic potential using the Fermi-Pasta-Ulam (FPU) model was assumed. Three different systems were studied: a uniform chain, a chain with a single impurity, and a diatomic chain. Numerical simulations using the fourth order Runge-Kutta algorithm was used to solve the equations of motion. An impurity in the chain serves as a {\textquotedblleft}thermal barrier{\textquotedblright}. In the diatomic lattice, an energy excitation is formed even before any particle collision occurs. Here the energy distribution at different times will be shown.
}, year = {2004}, booktitle = {Proceedings of the 22nd Samahang Pisika ng Pilipinas Physics Congress}, pages = {118}, month = {25{\textendash}27 Oct 2004}, address = {Bohol Tropics Resort, Tagbilaran City}, }