Topic: Electric field modulated magnetic anisotropy and microwave absorption properties of Fe50Ni50/Teflon composite films

Speaker: Jun He, Beijing Central Engineering and Research Incorporation of Iron and Steel Industry, China

Time: 3:30 p.m., June 2, 2016

Venue: Conference Room on the 2nd Floor, Building 8, SCUT North Campus

Abstract:

Fe50Ni50 nanoparticle films with the size about 6 nm were deposited by a high energetic cluster deposition source. An electric field of about 0 - 40 kV was applied on the sample platform when the films were prepared. The field assisted deposition technique can dramatically induce in-plane magnetic anisotropy. To probe the microwave absorption properties, the Fe50Ni50 nanoparticles were deliberately deposited on the dielectric teflon sheet. Then the laminated Fe50Ni50/Teflon composites were used to do reflection loss scan. The results prove that the application of electric field is an effective avenue to improve the GHz microwave absorption performance of our magnetic nanoparticles films expressed by the movement of reflection loss peak to high GHz region for the composites.