| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1622199 | Journal of Alloys and Compounds | 2009 | 4 Pages |
Abstract
A series of Cox(TPD)1−x granular film samples were fabricated by co-evaporating technique, where Co nanoparticles are dispersed in TPD molecules matrix. The HRTEM images show typical microstructural characteristic of granular films. Magnetization, electrical conduction, and magnetoresistance (MR) of Cox(TPD)1−x granular films, have been investigated over a wide temperature range and Co volume fraction. The negative MR have been observed in these samples, reaching −1.75% (x = 36 vol.%, at 4.2 K, 10 kOe). The mechanism of magneto-transport behaviors has been discussed. It is suggested that the negative MR results from tunneling magnetoresistance (TMR) effect.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
P. Sheng, G. Ni, J.F. Yin, Y. Zhang, Z.Y. Tang, S.M. Zhou, Q.Y. Jin,