The Effect Of The External Stress On The Exchange-Biased Systems With Both Uniaxial And Exchange Anisotropies

Along with the giant magnetic resistance devices in the mechanical and electrical, automotive, aerospace and high-density information storage areas of widely used, it is found that the exchange bias between ferromagnetic/antiferro-magnetic systems play the important role in magnetic resistance device practical process. It is very important that to explain clearly the angular dependencies phenomenon and its physical mechanism. This paper based on the analysis method to discuss the effect of the external stress on the exchange-biased systems with both uniaxial and exchange anisotropies. Using the principle of the minimal energy and the Stoner-Wohlfarth model, first, the monostable states and bistable states of the system are confirmed, and secondly, the magnetized processes are discussed. It is found that we can adjust the external stress to change the angular dependence of exchange bias in the systems. And it is more easily to study the angular dependence in the systems with both uniaxial and exchange anisotropies are considered than that with both anisotropies are not considered.