The Electric-Field Controllable Non-Volatile 35$^{\circ}$ Rotation of Magnetic Easy Axis in Magnetoelectric CoFeB/(001)-Cut Pb(Mg$_{1/3}$Nb$_{2/3}$)O$_{3}$-25%PbTiO$_{3}$ Heterostructure
Hao He1,2, Jiang-Tao Zhao2, Zhen-Lin Luo1,2**, Yuan-Jun Yang2, Han Xu2, Bin Hong2, Liang-Xin Wang2, Rui-Xue Wang3, Chen Gao1,2**
1Department of Materials Science and Engineering, and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026 2National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026 3Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080
Abstract：Using in situ electric-field-modulated anisotropic magnetoresistance measurement, a large reversible and non-volatile in-plane rotation of magnetic easy axis of $\sim$35$^{\circ}$ between the positive and negative electrical poling states is demonstrated in Co$_{40}$Fe$_{40}$B$_{20}$/(001)-cut Pb(Mg$_{1/3}$Nb$_{2/3}$)O$_{3}$-0.25PbTiO$_{3}$ (PMN-PT). The specific magnetoelectric coupling mechanism therein is experimentally verified to be related to the synchronous in-plane strain rotation induced by 109$^{\circ}$ ferroelastic domain switching in the (001)-cut PMN-PT substrate.
2016, Vol. 33 
