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The temperature dependences of the aftereffect coefficient Sv and the coercive force iHc have been measured from 4.2K to 300K on two specimens prepared from sintered magnets of Pr8Y7Fe77B8(sintered at 1060°C and 1100°C). The latter has higher maximum energy products. The Sv values of both have a maximum at 60K and 150K respectively. This is a new behavior which can not be explained by any theory proposed until now.
Published with permission from the copyright holder. This is the institute's copy, as published in Magnetics, IEEE Transactions on, Sep 1987, Volume 23, Issue 5, Pages 3122-3124.
Copyright © 1987 IEEE. All rights reserved.