Magnetic properties and high frequency characteristic of obliquely sputtered Co–M (M = V and Nb) thin films

Abstract Magnetic properties and high frequency characteristics of obliquely sputtered Co 100− x M x (M = V and Nb) films were investigated. All studied films exhibited strong induced in-plane uniaxial magnetic anisotropy. Less content of Nb ( x  = 7) than V ( x  = 16) is sufficient for Co 100− x M x films to become fully amorphous which exhibit the maximum magnetic anisotropy filed, reduced coercivity and the increased resistivity. The optimal properties of 4π M s  = 11.3 kG, H k  = 350 Oe and f FMR  = 5.6 GHz are attained for Co 93 Nb 7 film, which are suitable for up to 5 GHz applications.

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