Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499558 | Scripta Materialia | 2011 | 4 Pages |
Abstract
We present a systematic study of the thickness dependency of the structural, electrical and magnetic properties of undoped ZnO thin films. The highest saturation moment (∼36.75 emu cm−3) was observed for the thinnest films. Both the undoped and 5% Co doped ZnO films of different thickness (0.066–1.1 μm) showed a diamagnetic behavior upon annealing in oxygen. Activation energy of quenching of ferromagnetism revealed oxygen vacancies as the key mediating defect in ferromagnetic ZnO thin films.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Siddhartha Mal, Tsung-Han Yang, Chunming Jin, Sudhakar Nori, J. Narayan, J.T. Prater,