engleski

On Magnetic Properties of the DyNi5-xAlx (x= 0, 1, 1.5, 2, 2.5, 3) Intermetallics

The bulk magnetic properties of the DyNi5-xAlx (x=0, 1, 1.5, 2, 2.5 and 3) intermetallic compounds, have been investigated up to 25 K. It has been found that substitution of Ni by Al decreases the Curie temperature for those compounds with the CaCu5 type of crystal structure (x >2) but when the YCo3Ga2 structure type is adopted (x>2), the Curie temperature increases once more at x=2.5. For all alloys, the paramagnetic effective Bohr magneton numbers, peff were found to be close to the free ion value of Dy3+. A complex low temperature magnetic behaviour with a possibility of up to three ordered magnetic states was observed for the alloys with x>2.

reare-earth intermetallics; Curie temperatures; magnetic susceptibility; magnetic ordering

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