Abstract
Concentrated spin-glass behavior is discovered in a mechanically milled crystalline compound GdN. We report on measurements of magnetic relaxation and both ac and dc magnetic susceptibility at temperatures between 2 and 300 K in a magnetic field up to 5 T. Both ac and dc magnetic susceptibility measurements show a peak at freezing temperatures (Formula presented) that strongly depends on the frequency and amplitude of the applied magnetic field. The magnetic relaxation measurement shows a slow decay of the remanent magnetization with time below (Formula presented), which is well described by an exponential function in a long time scale and a reciprocal proportion function in a short time scale. The results strongly suggest that spin-glass behaviors exist in mechanically milled crystalline compound GdN with the magnetic element as high as 50 at. %.
| Original language | English |
|---|---|
| Pages (from-to) | 6467-6472 |
| Number of pages | 6 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 55 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1997 Jan 1 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics