Effects of spacer layers on magnetic properties and exchange couplings of Nd–Fe–B/Nd–Ce–Fe–B multilayer films Project supported by the Major State Basic Research Development Program of China (Grant No. 2014CB643701) and the General Program of the National Natural Science Foundation of China (Grant No. 51571064). |
The transmission electron microscopy images of the cross-section surface of the Si/Ta/NdFeB(100 nm)/(NdCe)FeB(y)/NdFeB(100 nm)/Ta films, with (a) y = 10 nm and (b) y = 100 nm. |