Development of dynamic nuclear polarization magnetic resonance force microscope (DNP-MRFM)

2016 Fiscal Year Final Research Report

• Project/Area Number: 26287081
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Kobe University
• Principal Investigator: OHMICHI EIji 神戸大学, 理学(系)研究科(研究院), 准教授 (00323634)
• Co-Investigator(Renkei-kenkyūsha): OHTA Hitoshi 神戸大学, 分子フォトサイエンス研究センター, 教授 (70194173)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: カンチレバー / 電子スピン共鳴 / 磁気共鳴力顕微鏡 / DNP

Outline of Final Research Achievements

We developed ultrasensitive high-frequency electron spin resonance technique and terahertz magnetic resonance force microscopy. With use of fiber-optic Fabry-Perot interferometry, a tiny sample on the order of 100 ng could become possible. Our technique was applied to hemin, a model substance of hemoproteins in frequencies up to 0.5 THz, and precise determination of zero-field splliting parameters was made.
In addition, three-axis piezoelectric translational stage for low-temperature and high-field eperiments were developed. By sweeping a magnetic-tip holding cantilever over the sample surface, we succeeded in spatially resolved ESR measurements at liquid helium temperature.

Free Research Field

磁性