The spontaneous polarity was firstly observed by electron-beambombardment and scanning electron microscope (STM).
利用电子束轰击和扫描成像手段，首此观察到了电气石的自发极化导致的电极性。
2
It is of great importance to improve the properties of DLC films deposited with simultaneous ion bombardment du-ring film growth by ion beam sputtering on graphite target.