M. Baumberger, E. Stoll, et al.
Physical Review B
Using the molecular-dynamics technique we have studied a linear chain with quartic anharmonicity. Particular solutions of the equation of motion, representing clusters (domains), are shown to be relevant for a statistical description of the dynamics. A new excitation branch and the associated central-peak phenomenon are traced back to traveling cluster waves and their lifetime. © 1975 The American Physical Society.
M. Baumberger, E. Stoll, et al.
Physical Review B
T. Schneider
Zeitschrift für Physik B Condensed Matter
T. Schneider, H. Keller
Physica B: Physics of Condensed Matter
T. Schneider
Computer Physics Communications