Abstract
The temperature and field dependence of the magnetization in a series of amorphous Co-Ni alloys is reported. We discuss the critical behaviour and introduce a phase diagram which includes paramagnetic, ferromagnetic (FM) and spin glass (SG) phases. A T3/2 dependence for the magnetization is established in the FM phase. Deviations from spin wave theory which are observed in alloys with a FM-SG transition are discussed in terms of single spin excitations.
Original language | English |
---|---|
Pages (from-to) | 1747-1749 |
Number of pages | 3 |
Journal | Journal of Applied Physics |
Volume | 52 |
Issue number | 3 |
DOIs | |
State | Published - 1981 |
Externally published | Yes |