Perpendicular magnetic anisotropy of full-Heusler films in   Pt/Co2FeAl/MgO trilayers
  We report on perpendicular magnetic anisotropy (PMA) in a Pt/Co2FeAl/MgO sandwiched structure with a thick Co2FeAl layer of 2-2.5 nm. The PMA is thermally stable that the anisotropy energy density Ku is 1.3{\times}106 erg/cm3 for the structure with 2 nm Co2FeAl after annealing at 350 oC. The thicknesses of Co2FeAl and MgO layers greatly affect the PMA. Our results provide an effective way to realize relative thick perpendicularly magnetized Heusler alloy films. 
Xiaoqi Li, Shaoqian Yin, Yupeng Liu, Delin Zhang, Xiaoguang Xu, Jun   Miao, and Yong Jiang
cond-mat.mtrl-sci cond-mat.mes-hall