MAGNETIC AND MAGNETOTRANSPORT PROPERTIES OF METASTABLE GDXNB1-X ALLOYS

Metastable GdxNb1-x alloys over the entire composition range have been realized by co-deposition at room temperature. Structural and magneti c phase diagrams have been determined. The alloys are crystalline bcc (0.00 less than or equal to x < 0.40), amorphous (0.40 less than or eq ual to x less than or equal to 0.70), and crystalline hcp ( 0.70 less than or equal to x less than or equal to 1.00). Magnetic and magneto-t ransport measurements show spin glass ordering for x less than or equa l to 0.60, and ferromagnetic-ordering with a weak spin glass transitio n for x > 0.60.