交换各向异性与单轴各向异性之间的竞争使体系存在单稳态与双稳态两种不同的状态，直接决定了交换偏置的角度依赖关系。
It is found that the system will be in monostable state or bistable state, which is controlled by the competition between the uniaxial anisotropy and the exchange anisotropy of the system.
模拟结果能够利用不同能量（无规各向异性能，偶极相互作用能和交换相互作用能）之间的竞争作用来解释。
Those behaviors can be explained with the competition of the different energies, including the random anisotropy, exchange and dipolar energies.
结果表明：界面交换作用导致单向各向异性，应力各向异性对材料的磁化难易程度有较大影响。
It is shown that exchange anisotropy results from the unidirectional anisotropy. And stress anisotropy has large effect on hard or easy magnetization direction.
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