New type magnetoresistance in Co/Si systems

Autor: H. Harada, T. Ishikawa, Shigeo Honda, Y. Mitarai, K. Takai
Rok vydání: 2005
Předmět:
Zdroj: Journal of Magnetism and Magnetic Materials. :1063-1066
ISSN: 0304-8853
DOI: 10.1016/j.jmmm.2004.11.459
Popis: The magnetoresistance (MR) properties in both the sputter-deposited Co/Si multilayers and the system consisting of Co evaporated on the anodized Si have been examined. In the Co/Si multilayers, at room temperature both the sharp ordinary magnetoresistance (OMR) and the negative granular-type giant magnetoresistance (GMR) appear, while at low temperatures only the large OMR of about 3.5% is observed for in-plane field. In the Co/anodized-Si system, at room temperature the MR is negligibly small, while it increases steeply with decreasing temperature and very large OMR of about 22% is obtained at 110 K for perpendicular field.
Databáze: OpenAIRE