Magnetic Properties of Amorphous Alloys: I. Co-P, II. Ni-P.
Abstract
Amorphous Co-P alloys, with compositions ranging between 18-25 a/o of P, were prepared by electrodeposition. Their magnetic properties were measured with a vibrating sample magnetometer between 4 and 520K in fields up to 8 Koe. The coercive force and ratio of remanence to saturation magnetization, of the alloys were several hundred times lower for the amorphous than for their as-crystallized states. The magnetic properties of electrodeposited amorphous Ni-P alloys, with P contents ranging from 12-23 a/o, were measured on a Foner-vibrating sample magnetometer in fields up to 8 Koe between 70 and 370K. Ferromagnetic Curie temperatures, Tc, determined by the 'method of thermodynamic parameters' were found to decrease from 212 to 75K as x sub p increases from 12.41 to 16.77 a/o. The results indicate that at x sub p about 16 - 18 amorphous Ni-P alloys behave as weak itinerant ferromagnets. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1974
- Accession Number
- AD0774716
Entities
People
- D. Pan
- D. Turnbull
Organizations
- Harvard University