地球磁场的成因与居里点随压强变化的推测  

The extrapolation on the origin of geomagnetic field and the change of Curie temperature along with the intensity of pressure

作　　者：李安生[1] 贾拴稳[1] 

机构地区：[1]安阳师范学院物理系,安阳455002

出　　处：《地球物理学进展》2007年第2期443-445,共3页Progress in Geophysics

摘　　要：本文由外斯的分子场理论推出:铁磁物质的居里点要随压强的变化而变化,地球的内核会因受到巨大的压强使居里点提高,超过内核的温度而保持铁磁性,为地磁成因的铁磁体假说找到了依据.This article explores that the ferromagnetic Curie point is changing along with the intensity of pressure according to the Weiss molecular field theory. Because of the huge intensity of pressure, the inner core of the earth can make the Curie temperature enhance and surpass the temperature of the inner core to maintain ferromagnetism. These prove the hypothesis of ferromagnet on the origin of the geomagnetic field.

关 键 词：地球磁场 居里点 外斯分子场 交换能 分解曲线 

分 类 号：P318[天文地球—固体地球物理学]