Magnetisation and Magneto-Resistance Study of Ferromagnetic Metal/Half Metallic Double Perovskite Bi-Layers
| Periodical | Materials Science Forum (Volume 700) |
|---|---|
| Main Theme | Advanced Materials and Nanotechnology |
| Edited by | B. J. Ruck and T. Kemmitt |
| Pages | 33-36 |
| DOI | 10.4028/www.scientific.net/MSF.700.33 |
| Citation | Duncan M. McCann et al., 2011, Materials Science Forum, 700, 33 |
| Online since | September, 2011 |
| Authors | Duncan M. McCann, Grant V. M. Williams, Adam R. Hyndman, Jibu Stephen |
| Keywords | Bi-Layers, Double-Perovskite, Magnetoresistivity MR, Spintronics, Thin Film |
| Price | US$ 28,- |
We observe a large magneto-resistance in very thin Ba2FeMoO6 films of ~-12% at 10K, which is not significantly changed when thin NiFe/Ba2FeMoO6 bi-layers are made. This suggests that the magneto-resistance in both cases is dominated by inter-grain tunnelling in the Ba2FeMoO6 thin film. There is an anomalous peak in the resistance at ~300K in the bi-layer film that can not be easily explained. However, we know that the temperature where this peak occurs is close to the Ba2FeMoO6 Curie temperature.