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- Title
Electric-Field-Induced Amplitude Tuning of Ferromagnetic Resonance Peak in Nano-granular Film FeCoB-SiO/PMN-PT Composites.
- Authors
Luo, Mei; Zhou, Peiheng; Liu, Yunfeng; Wang, Xin; Xie, Jianliang
- Abstract
One of the challenges in the design of microwave absorbers lies in tunable amplitude of dynamic permeability. In this work, we demonstrate that electric-field-induced magnetoelastic anisotropy in nano-granular film FeCoB-SiO/PMN-PT (011) composites can be used to tune the amplitude of ferromagnetic resonance peak at room temperature. The FeCoB magnetic particles are separated from each other by SiO insulating matrix and present slightly different in-plane anisotropy fields. As a result, multi-resonances appear in the imaginary permeability ( μ″) curve and mixed together to form a broadband absorption peak. The amplitude of the resonance peak could be modulated by external electric field from 118 to 266.
- Subjects
FERROMAGNETIC resonance; MAGNETOELASTIC effects; ELECTRIC fields; MAGNETIC anisotropy; LEAD magnesium niobate
- Publication
Nanoscale Research Letters, 2016, Vol 11, Issue 1, p1
- ISSN
1931-7573
- Publication type
Article
- DOI
10.1186/s11671-016-1717-x