Open AccessМагнитный аналог вращения Квинке
Author(s) -
А.И. Грачев
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.13.51116.18557
Subject(s) - diamagnetism , rotation (mathematics) , physics , magnetization , spinning , condensed matter physics , magnetic field , particle (ecology) , ferromagnetism , relaxation (psychology) , classical mechanics , materials science , quantum mechanics , geometry , mathematics , psychology , social psychology , oceanography , composite material , geology
Opportunity to observe magnetic analog of the Quincke rotation effect, namely, spontaneous rotation of a spherical particle in homogeneous DC magnetic field (B), is analyzed. Two experimental versions: nonmagnetic particle suspensioned in ferromagnetic liquid and, second, - diamagnetic sphere levitated in vacuum, are considered. In the first case spontaneous rotation is possible in the fields B < 0.1 T for relaxation times of the particle magnetization ~ 10-3 s. Indispensible condition of accelerated spinning of the diamagnetic sphere is confinement of its rotation degree of freedom by only one rotation axis orthogonal to the vector B.