@article{oai:nagoya.repo.nii.ac.jp:00023014,
 author = {Higashide, Tomohiro and Dai, Bing and Kato, Takeshi and Oshima, Daiki and Iwata, Satoshi},
 journal = {IEEE Magnetics Letters},
 month = {Jul},
 note = {The Gilbert damping constants α and effective perpendicular magnetic anisotropies Keff of amorphous GdFeCo (10 - x nm)/TbFe (x nm) exchange-coupled bilayers with various TbFe layer thicknesses x were measured. The products α × Keff of the bilayers were compared with the critical current densities Jc for current-induced magnetization switching (CIMS) in giant magnetoresistance nanopillars with a GdFeCo/TbFe memory layer. The damping constant α of the bilayers, estimated from time-resolved magneto-optical Kerr effect measurements, was 0.051 for x = 0, and was significantly enhanced to 0.23 for x = 1. The anisotropy constant Keff and the product of saturation magnetization times anisotropy field Ms Hk also increased with increasing TbFe thickness x. The CIMS of the GdFeCo (9 nm)/TbFe (1 nm) bilayer exhibited 1.6 times larger Jc than that of GdFeCo (10 nm), while the product α × Keff increased by a factor of 10., Article Sequence Number: 3505605},
 pages = {1--5},
 title = {Effective Damping Constant and Current Induced Magnetization Switching of GdFeCo/TbFe Exchange-Coupled Bilayers},
 volume = {7},
 year = {2016}
}