TY - Front. Phys. A1 - Bin-bin LÜ(吕彬彬), Qiang TIAN(田强), T1 - Discrete breathers in a two-dimensional Morse lattice with an on-site harmonic potential Y1 - 2009-12-05 JF - Frontiers of Physics JO - Front. Phys. SP - 497 EP - 504 VL - 4 IS - 4 UR - https://journal.hep.com.cn/fop N1 - 10.1007/s11467-009-0062-2 ER -