Gilder S, Glen J
S. Gilder, Institut de Physique du Globe de Paris, Laboratoire de Paleomagnetisme, 4 place Jussieu, 75252 Paris Cedex 05, France. E-mail:
Science. 1998 Jan 2;279(5347):72-4. doi: 10.1126/science.279.5347.72.
The attraction of hexagonal closed packed (hcp) iron to a magnet at 16.9 gigapascals and 261 degrees centigrade suggests that hcp iron is either paramagnetic or ferromagnetic with susceptibilities from 0. 15 to 0.001 and magnetizations from 1800 to 15 amperes per meter. If dominant in Earth's inner core, paramagnetic hcp iron could stabilize the geodynamo.
在16.9吉帕斯卡的压力和261摄氏度的条件下,六方密排(hcp)铁对磁铁有吸引力,这表明hcp铁要么是顺磁性的,要么是铁磁性的,其磁化率在0.15至0.001之间,磁化强度在1800至15安培每米之间。如果在地球内核中占主导地位,顺磁性hcp铁可能会使地球发电机稳定下来。