Adjust the resonance frequency of (Co90Nb10/Ta)(n) multilayers from 1.4 to 6.5 GHz by controlling the thickness of Ta interlayers

作者：Chai, Guozhi; Yang, Yuancai; Zhu, Jingyi; Lin, Min; Sui, Wenbo; Guo, Dangwei; Li, Xiling; Xue, Desheng^*

来源：Applied Physics Letters, 2010, 96(1): 012505.

DOI：10.1063/1.3290252

• cobalt alloys
• magnetic anisotropy
• magnetic multilayers
• magnetic permeability
• magnetic resonance
• niobium alloys
• tantalum

In this work, the static and high frequency magnetic properties of (Co90Nb10/Ta)(n) multilayers have been investigated. The results show that the in-plane uniaxial magnetic anisotropy fields can be adjusted from 12 to 520 Oe only by decreasing the thickness of Ta interlayers from 8.0 to 1.8 nm. As a consequence, the resonance frequencies of the multilayers continuously increased from 1.4 to 6.5 GHz. It was found that the changes in the in-plane uniaxial anisotropy field are ascribed to the interlayer interactions among the magnetic layers by investigating the delta M(H) curves.

• 出版日期2010-1-4
• 单位兰州大学