标题：Effect of Temperature on Polaron Stability in a One-Dimensional Organic Lattice
作者机构：[刘文;李元;渠朕;高琨;尹笋;刘德胜]State Key Laboratory of Crystal Materials, School of Physics, Shandong University, Jinan 250100.;[刘德胜]Department o 更多
通讯作者地址：[Liu, W]Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China.
摘要：Effect of temperature on the polaron stability in a one-dimensional organic lattice is investigated within the Su-Schrieffer-Heeger model. The temperature effect is simulated by introducing random forces to the equation of the lattice motion. It is found that the localized polaron state becomes delocalized even at low temperatures. The time of polaron keeping localized depends on the magnitude of temperatures. By taking into account the thermal effect, we find that the dissociation field is weaker as compared with earlier works.