The Exchange Anisotropy in Ferromagnetic/Antiferromagnetic Bilayers under the Strain Field
スポンサーリンク
概要
- 論文の詳細を見る
The in-plane exchange anisotropy in a ferromagnetic (FM)/antiferromagnetic (AFM) bilayer under strain field has been investigated. Both cubic and uniaxial magnetocrystalline anisotropies are taken into account for the FM layer while the AFM layer is only considered as uniaxial magnetocrystalline anisotropy. In the semi-infinite limit for the AFM layer, the equilibrium energy for the system is established, and the analytical expressions are derived for exchange anisotropy constant, effective exchange bias, and pinning angle. The results show that not only the strain field angle but also its size will affect the effective exchange bias. The reason is that the pinning angle can be affected by the strain field including its size and direction but only affected by the size of the applied magnetic field. In addition, the effective measured exchange anisotropy from the hysteresis loop, ac susceptibility and ferromagnetic resonance are derived, and the comparison with previously reported theoretical results is made.
- 2007-10-15
著者
-
Zhou Lan
College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China
-
Pan Jing
College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China
-
Tao Yong-chun
Department of Physics, Nanjing Normal University, Nanjing 210097, China
-
Hu Jing-guo
College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China