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Table 1. Numerical data of the diamagnetic grains studied in the present report. Here, m and χDIA denote the mass of the sample, and the diamagnetic susceptibility per unit mass, respectively. The samples were cut from a synthetic block having a purity of 99.99%. The χDIA values of graphite-1 and bismuth-1 were measured in a previous study (Hisayoshi et al., 2011).

From: Magnetic ejection of diamagnetic sub-millimeter grains observed by a chamber-type μG generator orientated to identify material of a single particle

Sample m [g] x0 [cm] B0 [T] vR [cm/s] χDIA [×10−7 emu/g]
Measured Published
graphite-2 (1.6 ± 0.5) × 10−4 1.00±0.01 0.624±0.006 12.1±0.1 42.3±1.5 52
bismuth-2 (7.8 ± 0.1) × 10−4 0.94±0.04 0.660±0.060 8.84±0.10 18.0±0.1 13.4
polyethylene-1 (3.2 ± 0.3) × 10−4 1.09±0.01 0.574±0.053 5.62±0.23 9.58±0.80 9.0
polyethylene-2 (16 ± 0.3) × 10−4 0.95±0.01 0.652±0.053 5.89±0.23 8.00±0.25 9.0
graphite-1 (1.6 ± 0.5) × 10−4 0.99±0.01 0.629±0.006 13.9±0.1 48.7±1.5 52
bismuth-1 (5.0 ± 0.1) × 10−4 0.94±0.04 0.658±0.060 9.83±0.10 16.5±3.0 13.4