Strong anti-strain capacity of CoFeB/MgO interface on electronic structure and state coupling

Guo Fei, Wu Yaping^†, Wu Zhiming^‡, Chen Ting, Li Heng, Zhang Chunmiao, Fu Mingming, Lu Yihong, Kang Junyong^¶

(color online) Majority-spin Bloch state characters around the Fermi level as a function of layer number for the Fe/MgO, CoFe/MgO, and CoFeB/MgO interfaces (a) without and (b) with 3.5% tensile biaxial strain, respectively.