Electrical resistivity of reentrant spin glass Fe91Zr9 under pressure

The electrical resistivity of the reentrant spin glass Fe91Zr9 amorphous al loy has been studied from 10 K to RT between 1 bar and 13 kbar. Increasing pressure results in a decrease of the magnitude of resistivity and a extrem ely large shift of the minimum temperature (Delta T-min > 100 K). At 13 kba r, the resistivity shape is similar to that of amorphous Co-Zr (Co-rich) an d Fe-B alloys, in which no spin glass state is present at low temperatures. The relationship between the Curie temperature and T-min shifts with press ure is discussed. (C) 1999 Elsevier Science B.V. All rights reserved.