中国物理B ›› 2018, Vol. 27 ›› Issue (11): 110501-110501.doi: 10.1088/1674-1056/27/11/110501
• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇 下一篇
Ran Zhang(张冉), Miao Peng(彭淼), Zhengdi Zhang(张正娣), Qinsheng Bi(毕勤胜)
Ran Zhang(张冉)1, Miao Peng(彭淼)1, Zhengdi Zhang(张正娣)1, Qinsheng Bi(毕勤胜)2
摘要:
Based on the chaotic geomagnetic field model, a non-smooth factor is introduced to explore complex dynamical behaviors of a system with multiple time scales. By regarding the whole excitation term as a parameter, bifurcation sets are derived, which divide the generalized parameter space into several regions corresponding to different kinds of dynamic behaviors. Due to the existence of non-smooth factors, different types of bifurcations are presented in spiking states, such as grazing-sliding bifurcation and across-sliding bifurcation. In addition, the non-smooth fold bifurcation may lead to the appearance of a special quiescent state in the interface as well as a non-smooth homoclinic bifurcation phenomenon. Due to these bifurcation behaviors, a special transition between spiking and quiescent state can also occur.
中图分类号: (Nonlinear dynamics and chaos)