Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 80, Issue 3, Pages 601-606Publisher
SPRINGER
DOI: 10.1007/s00339-003-2239-9
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An amorphous GdNiAl sample was prepared by mechanical grinding performed on a crystallised intermetallic. The treatment changes greatly the ferromagnetic behaviour of this compound; its Curie temperature decreases from 57 K (unmilled sample) to 29 K ( milled sample). Specific heat and magnetisation measurements reveal that amorphous GdNiAl exhibits an interesting magnetocaloric effect; for an applied magnetic field of 5 T a change of congruent to 8.9 J/kg K is observed at 36 K for the isothermal magnetic entropy.
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