Contribution from Moldcular Field to the Temperature Dependence of Tunneling Magnetoresistance

This paper presents amethod that restrains a systematical behavior by a synchronistical measure and forces itto repeat a section of chaotic trajectory periodically, so that the high periodic chaoticsignal can be obtained. The obtained signal not only keeps the typical features of thechaotic signal but also has the advantages of a periodic signal. The results of thesimulation calculation, the experimental circuit and the experimental results aboutrealizing the method on the basis of. Lorenz mode are given. The advantages of this methodfor applications in secret communication or covering information are discussed.