Abstract
Magnetization measurements were performed on a series of Zn0.9-x Fe0.1CuxO samples (0 ≤ x ≤ 0.10). Small hysteresis losses are seen at low temperatures. The ferromagnetic exchange interaction has been evaluated from the inverse DC magnetic susceptibility versus T and the molecular field theory. We found that Cu-doping greatly enhances the FM exchange interaction, increases the saturation magnetization, hysteresis losses and the magnetic susceptibility. Arrott-Kouvel plot has been used to study the spontaneous magnetic moment at low temperatures. We show that hysteresis losses cannot be taken as the only evidence for the appearance of the ferromagnetic order in these semiconducting semi-magnetic materials.
| Original language | English |
|---|---|
| Pages (from-to) | 591-594 |
| Number of pages | 4 |
| Journal | International Journal of Nanoscience |
| Volume | 9 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2010 |
Bibliographical note
Funding Information:This work has been supported by King Fahd University of Petroleum and Minerals under grant No. IP2007/08. We would like to thank A.F. Salem,
Keywords
- Exchange interaction
- magnetic semiconductor
- molecular field theory
ASJC Scopus subject areas
- Biotechnology
- Bioengineering
- General Materials Science
- Condensed Matter Physics
- Computer Science Applications
- Electrical and Electronic Engineering
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