Title :
Magnetic and magneto-transport properties of metastable Gdx Nb1-x alloys
Author :
Sommer, R.L. ; Xiao, John Q. ; Chien, C.L.
Author_Institution :
Dept. of Phys. & Astron., Johns Hopkins Univ., Baltimore, MD, USA
fDate :
7/1/1998 12:00:00 AM
Abstract :
Metastable GdxNb1-x alloys over the entire composition range have been realized by co-deposition at room temperature. Structural and magnetic phase diagrams have been determined. The alloys are crystalline bcc (0.00⩽x⩽0.40), amorphous (0.40⩽x⩽0.70), and crystalline hcp (0.70⩽x⩽1.00). Magnetic and magneto-transport measurements show spin glass ordering for x⩽0.60, and ferromagnetic ordering with a weak spin glass transition for x>0.60
Keywords :
amorphous magnetic materials; ferromagnetic materials; gadolinium alloys; magnetic thin films; magnetic transitions; magnetoresistance; niobium alloys; phase diagrams; spin glasses; sputtered coatings; 20 C; GdNb; amorphous phase; co-deposition; crystalline BCC phase; crystalline HCP phase; ferromagnetic ordering; magnetic phase diagrams; magnetic properties; magneto-transport properties; metastable GdxNb1-x alloys; room temperature; spin glass ordering; structural phase diagrams; weak spin glass transition; Amorphous magnetic materials; Crystallization; Extraterrestrial measurements; Lattices; Magnetic properties; Magnetostriction; Metastasis; Niobium alloys; Superconducting magnets; X-ray diffraction;
Journal_Title :
Magnetics, IEEE Transactions on
