| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 814597 | Rare Metal Materials and Engineering | 2016 | 5 Pages |
Abstract
Polycrystalline bulk samples Zn0.98Fe0.02O doped with Sn or Cu were prepared at 600 oC by a coprecipitation method. The XRD structure analysis shows that all samples are of single phase with the ZnO wurtzite structure. X-ray photoelectron spectroscopy indicates an oxidation state of 4+ for Sn, while a mixed state of 1+ and 2+ for Cu. It is found that Zn0.98Fe0.02O without doping shows weak ferromagnetism at room temperature. Cu doping induces an increase of magnetization at low temperature of 10 K, while Sn doping will seriously suppress the ferromagnetism in the whole temperature range from 300 K to 10 K. This result is consistent with bound magnetic polaron model relative to hole carriers.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanics of Materials
Authors
Chang Tongqin, Wang Yongqiang, Hao Junhong,