TY - JOUR
A2 - Angelakeris, Makis
AU - Tsai, Jai-Lin
AU - Huang, Jian-Chiang
AU - Tai, Hsueh-Wei
PY - 2012
DA - 2012/05/13
TI - Interlayer Thickness Effects on Magnetic Properties of X/FePtAg ( and ) Trilayers
SP - 129097
VL - 2012
AB - A soft/hard FePt/Fe/FePtAg and Fe/FePt/FePtAg trilayers with perpendicular magnetization were prepared on a glass substrate. Inserting disordered FePt layer allowed modification of magnetic anisotropy of the Fe/FePtAg sharp interface to Fe/FePt/FePtAg stepwise interface. The out-of-plane coercivity field was modulated as a function of the FePt thickness because of the interface coupling attenuation between Fe and FePtAg. The coercivity was inversely proportional to the FePt thickness as evidenced by the pinning effect at the stepwise interface. Additionally, the out-of-plane magnetization was controlled by domain wall pinning effect. The in-plane magnetization reversal processes occurred in two steps like in exchange spring systems and attributed to the domain wall nucleation and its propagation from Fe/FePt layer into FePtAg layer.
SN - 1687-4110
UR - https://doi.org/10.1155/2012/129097
DO - 10.1155/2012/129097
JF - Journal of Nanomaterials
PB - Hindawi Publishing Corporation
KW -
ER -