Abstract
Magnetization at 0.3 and 140 Hz (0-10 Oe) and magnetic relaxation measurements were carried out in detail in the temperature range between 4.2 and 300 K for a polycrystalline Fe65Ni35 alloy. The typical temperature Tg and the magnetic field Hg which correspond to the anomalous temperature in χ-T curves and inflection field in σ-H curves, respectively, are summarized and a H-T diagram is obtained. A strong magnetic relaxation is observed along the Hg-T line. The temperature dependence of Hg is discussed by the thermal activation of 180° domain wall which is pinned strongly by the antiferromagnetic-like clusters below Tg. It is find that H 1 2g is a linear function of T 2 3.
Original language | English |
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Pages (from-to) | 219-226 |
Number of pages | 8 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 60 |
Issue number | 2-3 |
DOIs | |
Publication status | Published - 1986 Aug |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics