Transport Properties in Co-Al-O and Fe-Al-O granular systems

H. Sato; Y. Kobayashi; K. Hashimoto; Y. Aoki; H. Sugawara; S. Mitani; H. Fujimori; S. Ohnuma

doi:10.3379/jmsjmag.23.73

Chapter 1. Spin Dependent Transport

Transport Properties in Co-Al-O and Fe-Al-O granular systems

H. Sato, Y. Kobayashi, K. Hashimoto, Y. Aoki, H. Sugawara, S. Mitani, H. Fujimori, S. Ohnuma

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Keywords: oxide-granular, GMR, tunneling, Hall effect, thermoelectric power

JOURNAL OPEN ACCESS

1999 Volume 23 Issue 1_2 Pages 73-75

DOI https://doi.org/10.3379/jmsjmag.23.73

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Abstract

We have investigated the Hall effect and thermoelectric power (TEP) in Co-Al-O and Fe-Al-O granular films. The extraordinary Hall resistivity was found to decrease on approaching the tunneling regime. Even on tunneling type samples, we observed finite thermoelectric voltages, which exhibit large field dependence correlated with the giant magnetoresistance.

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