The amorphous TbFeCo films covered with the protective AIN films have been prepared by the rf magnetron sputtering system.It is found that the protective AIN films not only protect rare earth elements from oxidation a...The amorphous TbFeCo films covered with the protective AIN films have been prepared by the rf magnetron sputtering system.It is found that the protective AIN films not only protect rare earth elements from oxidation and enhance magneto-optical Kerr effect but also affect the magnetic properties of the rare earth-transition metal films.The coercivity Hc and perpendicular magnetic anisotropy energy constants K'U1 and KU2 of the films are changed with the thickness of the protective AIN films.It can be explained according to the stress mechanism and the model of single ion anisotropy.展开更多
A sequence of Ti_(1-x)Al_(x)N films has been prepared by rf reactive magnetron sputtering.The optical and electric properties versus aluminum content x have been studied.Values suitable for magneto-optic protective la...A sequence of Ti_(1-x)Al_(x)N films has been prepared by rf reactive magnetron sputtering.The optical and electric properties versus aluminum content x have been studied.Values suitable for magneto-optic protective layers have been achieved in Ti_(1-x)Al_(x) N thin films with aluminum content x>0.75.X-ray diffraction results show that Ti_(1-x)Al_(x) N thin films in this study are a bcc structure up to x=0.75,further increase in the aluminum content gives a wurtzite structure.All of the results show that the optical and electric properties of Ti_(1-x)Al_(x) N films might be related to the crystal structure.展开更多
文摘The amorphous TbFeCo films covered with the protective AIN films have been prepared by the rf magnetron sputtering system.It is found that the protective AIN films not only protect rare earth elements from oxidation and enhance magneto-optical Kerr effect but also affect the magnetic properties of the rare earth-transition metal films.The coercivity Hc and perpendicular magnetic anisotropy energy constants K'U1 and KU2 of the films are changed with the thickness of the protective AIN films.It can be explained according to the stress mechanism and the model of single ion anisotropy.
基金Supported by Doctoral Programm Foundation of State Education Commission。
文摘A sequence of Ti_(1-x)Al_(x)N films has been prepared by rf reactive magnetron sputtering.The optical and electric properties versus aluminum content x have been studied.Values suitable for magneto-optic protective layers have been achieved in Ti_(1-x)Al_(x) N thin films with aluminum content x>0.75.X-ray diffraction results show that Ti_(1-x)Al_(x) N thin films in this study are a bcc structure up to x=0.75,further increase in the aluminum content gives a wurtzite structure.All of the results show that the optical and electric properties of Ti_(1-x)Al_(x) N films might be related to the crystal structure.
