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 Co100− 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 Co100− 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 4πM s =11.3kG, H k =350Oe and f FMR =5.6GHz are attained for Co93Nb7 film, which are suitable for up to 5GHz applications. [Copyright &y& Elsevier]