[21a-P02-1~50] 10 Spintronics and Magnetics(Poster)

[21a-P02-1] Magnetic levitation of liquid and solid by permanent magnets

〇Tomoaki Suzuki¹, Masayuki Sugaya¹, Yasuhiro Ikezoe¹ (1.Nippon Institute of Technology)

Keywords:magnetic levitation, water, alumina

Diamagnetic levitation is known as an interesting technology that can levitate an object in a static environment at room temperature without any outer stimulus, which enables fundamental scientific researches. However, since the magnetic susceptibility of the diamagnetic material is very small, it is generally considered that a hybrid superconducting magnet is required for magnetic levitation. Recently, we carried out a detailed simulation of magnetic field around small (< 1 cm) permanent magnets and found that, in a certain arrangement of magnets, magnetic force is surprisingly enhanced and reaches strong enough value to magnetically levitate inorganic materials. So far, it has been rarely reported even with superconducting magnets, however, our experiments revealed that detailed investigation of the field makes magnetic levitation much easier. Our technique can be applied to the development of microscopic spherical lenses or material processing technology under levitation condition.