A study was conducted to investigate tunneling magnetoresistance (TMR) and related properties in insulating granular systems, which consist of nanometer-sized magnetic metal particles and insulating matrix. Remarkable enhancement of MR was observed for Co-Al-O granular films at low temperatures. Furthermore, staircase structures appeared in the current-voltage (I-V) characteristics for a few Co particles at the film surface by means of scanning tunneling microscopy (STM) measurements.
|Journal||Digests of the Intermag Conference|
|Publication status||Published - 1999|
|Event||Proceedings of the 1999 IEEE International Magnetics Conference 'Digest of Intermag 99' - Kyongju, South Korea|
Duration: 1999 May 18 → 1999 May 21
ASJC Scopus subject areas
- Electrical and Electronic Engineering