Co纳米线阵列的宽频微波铁磁共振测试  

Broadband microwave ferromagnetic resonance measurement of Co nanowire array

作　　者：袁礼新[1] 岳振星[1] 孟思勤[1] 李龙土[1] 

机构地区：[1]清华大学材料学院,北京100084

出　　处：《电子元件与材料》2015年第6期1-3,共3页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(No.51272125)

摘　　要：以多孔阳极氧化铝为模板，通过直流电沉积制备了Co纳米线阵列。XRD分析表明其具有密堆六方晶体结构和（100）择优取向。以共面波导-倒装芯片法测试了Co纳米线阵列的微波铁磁共振特性，该宽频铁磁共振测试系统测试频率范围为0~50 GHz。结果表明：该Co纳米线阵列的旋磁比为2.03×10–3GHz/Oe，零场铁磁共振频率高达10.8 GHz，有效磁各向异性场为5.3 kOe。Co nanowire array was embedded into anodic aluminum oxide template by DC electrodeposition method. The result of X-ray diffraction （XRD） analysis shows that the prepared Co nanowire array exhibit a hexagonal close packed （hcp） structure with preferred orientation of （100） plane. A broadband ferromagnetic resonance system operating in the frequency range from 0 GHz to 50 GHz, was taken to measure the microwave ferromagnetic resonance of the Co nanowire array with a coplanar waveguide using the flip-chip technique. The results show that the Co nanowire array has a gyromagnetic ratio of 2.03×10–3GHz/Oe, a zero-filed ferromagnetic resonance frequency up to 10.8 GHz and a large effective magnetic anisotropy field of 5.3 kOe.

关 键 词：Co纳米线阵列 电化学沉积 铁磁共振 共面波导 倒装芯片 氧化铝模板 

分 类 号：TB34[一般工业技术—材料科学与工程]