Abstract
Translations induced by a field gradient force are newly reported on various diamagnetic crystals that are released in microgravity (µG) produced by a drop capsule. A crystal released near a field center ( B ∼1 T) with negligible initial velocity translates through a diffused gas medium, in a direction of monotonically decreasing field. In a given field distribution, the velocity of the crystal uniquely depends on the intrinsic diamagnetic susceptibility χ DIA of the material; velocity is independent of the mass m of particles. The general features of rotational oscillation caused by field-induced anisotropy energy are studied on the basis of previous experimental data; the rotational oscillation of a magnetically stable axis with respect to the direction of homogeneous field has recently been observed for various diamagnetic crystals in µG. At a given field intensity, the period of oscillation is uniquely determined by the intrinsic diamagnetic anisotropy Δχ DIA and I m -1 of crystals; I denotes the mome...
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