Alternating domains with uniaxial and biaxial magnetic anisotropy in   epitaxial Fe films on BaTiO3
  We report on domain formation and magnetization reversal in epitaxial Fe films on ferroelectric BaTiO3 substrates with ferroelastic a-c stripe domains. The Fe films exhibit biaxial magnetic anisotropy on top of c domains with out-of-plane polarization, whereas the in-plane lattice elongation of a domains induces uniaxial magnetoelastic anisotropy via inverse magnetostriction. The strong modulation of magnetic anisotropy symmetry results in full imprinting of the a-c domain pattern in the Fe films. Exchange and magnetostatic interactions between neighboring magnetic stripes further influence magnetization reversal and pattern formation within the a and c domains. 
Tuomas H. E. Lahtinen, Yasuhiro Shirahata, Lide Yao, K\'evin J. A.   Franke, Gorige Venkataiah, Tomoyasu Taniyama, and Sebas...
cond-mat.mtrl-sci