The magnetic ordering of graphite grains and its application to astrophysical problems

Details The magnetic ordering of graphite grains and its application to astrophysical problems The magnetic ordering of graphite grains and its application to astrophysical problems

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998jmmm..177.1455c&link_type=abstract

Journal of Magnetism and Magnetic Materials, Volume 177, p. 1455-1456.

Astronomy and Astrophysics

Astronomy

1

Elsevier: Diamagnetic Anisotropy, Diamagnetic Orientation, Grain Alignment, Interstellar Magnetic Field

Scientific paper

The size dependence of diamagnetic orientation is reported on micron-sized graphite grains suspended in liquid ethanol at room temperature. The experiment was performed as a preliminary step to reproduce the magnetic alignment of astronomical dust particles in space. The mean grain sizes of the two samples were 2.5 and 3.8 μm in diameter with the field of full orientation Hs being 35.9 and 29.0 m T, respectively. The present Hs obtained for graphite grains are the smallest values compared to any of the reported data on micron-sized particles. The diamagnetic orientation may be applicable to explain the grain alignment in the cosmic dense cloud of a star formation region.

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