Publication Type |
Journal Article |
School or College |
College of Engineering |
Department |
Materials Science & Engineering |
Creator |
Tiwari, Ashutosh |
Other Author |
Snure, Michael; Kumar, Dhananjay; Abiade, Jeremiah T. |
Title |
Ferromagnetism in Cu-doped ZnO films: role of charge carriers |
Date |
2008 |
Description |
We report the observation of room temperature ferromagnetism in Cu-doped (5%) ZnO films grown on c-plane sapphire substrates. Films were prepared by pulsed laser deposition technique and were thoroughly characterized using several state-of-the-art characterization techniques. Hall measurements showed that the films are of n-type with a carrier concentration of 3 x 1017 cm−3. Magnetization measurements showed that the films exhibit room temperature ferromagnetism with a saturation magnetization of ~1.45μB/Cu atom. When additional carriers were introduced in the films, ferromagnetism was completely vanished. Our results show that the p-type nature of the film is not essential for realizing ferromagnetic characteristics; however, the concentration of n-type carriers should not exceed a critical value. |
Type |
Text |
Publisher |
American Institute of Physics (AIP) |
Journal Title |
Applied Physics Letters |
Volume |
92 |
Issue |
6 |
First Page |
62509 |
DOI |
10.1063/1.2857481 |
citatation_issn |
36951 |
Subject |
Charge carriers |
Subject LCSH |
Zinc oxide; Semiconductor doping; Thin films; Ferromagnetism |
Language |
eng |
Bibliographic Citation |
Tiwari, A., Snure, M., Kumar D., & Abiade, J. T. (2008). Ferromagnetism in Cu-doped ZnO films: role of charge carriers. Applied Physics Letters, 92(6), 062509. |
Rights Management |
(c)American Institute of Physics. The following article appeared in Tiwari, A., Snure, M., Kumar D., & Abiade, J. T., Applied Physics Letters, 92(6), 2008 and may be found at http://dx.doi.org/10.1063/1.2857481 |
Format Medium |
application/pdf |
Format Extent |
308,387 bytes |
Identifier |
ir-main,12053 |
ARK |
ark:/87278/s6pk10px |
Setname |
ir_uspace |
ID |
706292 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6pk10px |