Ferromagnetic resonance properties of granular Co-Cr-Pt films measured by micro-fabricated coplanar waveguides
Ferromagnetic resonance properties of granular Co-Cr-Pt films measured by micro-fabricated coplanar waveguides
复制标题
DOI：
10.1063/1.3679411
复制
发表时间：
2012-03
影响因子：
3.2
通讯作者：
T. Kobayashi;N. Ishida;K. Sekiguchi;Y. Nozaki
中科院分区：
文献类型：
--
作者：
T. Kobayashi;N. Ishida;K. Sekiguchi;Y. Nozaki
用矢量网络分析仪研究了Co-Cr-Pt颗粒膜的铁磁共振谱。虽然颗粒状Co-Cr-Pt薄膜具有弱的磁化率，但共面波导结构的优化使得Co-Cr-Pt薄膜的弱FMR信号的测量成为可能，而Co-Cr-Pt薄膜是一种很有前途的磁记录介质。观测到的FMR谱符合Kittel公式。我们的简单模型很好地建立了CPW的优化，提供了一种方法来探索颗粒介质的基本磁性。
Ferromagnetic resonance (FMR) spectroscopy of granular Co-Cr-Pt films has been studied by means of a vector network analyzer. Though the granular Co-Cr-Pt films have weak magnetic susceptibility, the structural optimization of a coplanar waveguide (CPW) enables the measurement of the weak FMR signal of granular Co-Cr-Pt films, which are a promising medium for magnetic recording. The observed FMR spectra are consistent with the Kittel formula. The optimization of the CPW is well established by our simple model, providing a method to explore the basic magnetic properties of a granular medium.