Fe:SmCo(Cr)薄膜的结构、磁性能与磁光克尔效应  

Microstructure, magnetic and magneto-optical properties of Fe-doped SmCo films

在线阅读下载全文

作  者:汪文文[1] 方庆清[1] 王丹丹[1] 杨景景[1] 

机构地区:[1]安徽大学物理与材料科学学院安徽省信息材料与器件重点实验室,安徽合肥230039

出  处:《磁性材料及器件》2015年第6期16-20,28,共6页Journal of Magnetic Materials and Devices

基  金:高等学校博士学科点专项科研基金资助项目(20093401110004);安徽省教育厅重点科学基金资助项目(20120168)

摘  要:利用脉冲激光沉积工艺,分别在单晶Si(100)衬底和玻璃(Si O2)衬底上制备Fe:Sm Co/Cu(Cr)薄膜,研究了Fe掺杂对Sm Co薄膜结构、磁性能与磁光效应的影响。实验发现,衬底对Fe掺杂Sm Co薄膜性能有很大影响,Si衬底薄膜的矫顽力和饱和磁化强度均优于玻璃衬底样品;同时退火温度也会影响Fe掺杂Sm Co薄膜形貌及磁性能,高温退火后,Sm Co衍射峰得到了增强,尤其是Sm Co5的(001)、(002)和(003)衍射峰最为明显,这是由于高温退火后Cu(111)衍射峰增强的缘故。同时发现,退火后的Si O2衬底与Si衬底样品的磁性和磁光效应均得到增强,但Si O2衬底的矫顽力Hc变化更明显,这是因为较高的表面应力会导致样品的矫顽力增强。因此可以通过调节Fe含量来控制样品的磁光性能,这就为优化Sm Co薄膜作为磁光存储介质的性能指出了一个研究方向。SmCo/Cu, SmCo/Cu/Cr and Fe-doped SmCo films were prepared on glass and Si(100) substrates by pulsed laser deposition, and the microstructure, magnetic and magnetooptical properties of Fe doped SmCo films were researched. The experiments show that the substrates can greatly affect the magnetic properties of film samples, and the corcivity and saturation magnetization of films deposited on Si substrates are better than that on glass subatrates. It is also found that the surface morphology and magnetic properties of Fe:SmCo films were influenced by the temperature annealing and experiments show that the X-ray diffraction peaks of SmCo are enhanced, especially for (001), (002) and (003) peaks, due to the enhancement of Cu(111) peaks after annealing. Moreover, the MOE of the both samples on glass and Si substrates is enhanced after annealing, respectively, even the coercivity of films on glass substrates is better than that on Si substrate, due to the higher surface stress resulting from a stronger coercivity. The Fe content can be adjusted to control the magneto-optical performance of the sample, indicating a research odirection for optimizing the property of SmCo film as the magneto optical storages.

关 键 词:SmCo薄膜 FE掺杂 结构 磁性能 磁光效应 

分 类 号:TM273[一般工业技术—材料科学与工程] O484.43[电气工程—电工理论与新技术]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象