3) Y Tang, and J.G Zhu, “Narrow Track Confiement by AC Field Generation Layer in Microwave Assisted Magnetic Recording” IEEE Trans. Magn., 44, No. 11, 3376-3379 (2008).
4) Houssameddine.D,et al, “Spintorque oscillator using a perpendicular polarizer and a planar free layer,” Nature Mater., 16, 447-453(2007).