Optical motion control of maglev diamagnetic materials

2016 Fiscal Year Final Research Report

• Project/Area Number: 26620073
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Functional solid state chemistry
• Research Institution: Aoyama Gakuin University
• Principal Investigator: Abe Jiro 青山学院大学, 理工学部, 教授 (70211703)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 光化学 / 磁性

Outline of Final Research Achievements

Graphite has been known as a typical diamagnetic material and can be levitated in the strong magnetic field. We found that the magnetically levitating pyrolytic graphite can be moved in the arbitrary place by simple photoirradiation. It is notable that the optical motion control system requires only NdFeB permanent magnets and light source. The optical movement is driven by photothermally induced changes in the magnetic susceptibility of the graphite. We found that light energy can be converted into rotational kinetic energy by means of the photothermal property. We analyzed the energy conversion efficiency and optimized the condition for increasing the rotational speed.

Free Research Field

物理化学