Study on exchange interaction of the nanomagnetic materials by using the magnetic exchange force microscopy with ferromagnetic resonance

2016 Fiscal Year Final Research Report

• Project/Area Number: 26286051
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: Osaka University
• Principal Investigator: Li Yanjun 大阪大学, 工学(系)研究科(研究院), 准教授 (50379137)
• Co-Investigator(Kenkyū-buntansha): 菅原 康弘 大阪大学, 工学(系)研究科(研究院), 教授 (40206404)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 強磁性共鳴 / 磁気交換力顕微鏡 / 磁気モーメント / 超高感度化 / 超高分解能化

Outline of Final Research Achievements

The properties of the magnetic materials are greatly affected by the magnetic moment with electronic spin. Therefore, understanding of the exchange interaction between the spin is important essentially to design the nanomagnetic body as a new function.　In this study, we use the magnetic exchange force microscopy with the ferromagnetic resonance to measure the exchange interaction of a nanomagnetic body built on the insulator surface with the atomic-scale and elucidate it how to influence exchange interaction by atomicity and a dimension, structure of nanostructure. As a result, first, we realized magnetism exchange force microscopy with the highest resolution and highest sensitivity. Second, we developed a method of deriving an exchange force from the modulation frequency included in the frequency shift of the cantilever.

Free Research Field

走査型プロップ顕微鏡