Journal of the Physical Society of Japan
Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015
Transport Properties of Cu/Permalloy Artificial Layers
Junji SakuraiTomohiko KuwaiDexuan HuoTeruo OnoKunji ShigetoTeruya Shinjo
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2001 Volume 70 Issue 2 Pages 505-508

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Abstract
We have measured the electrical resistance R of wires and foils of thin artificial Cu/Permalloy (NiFe) layers in the temperature range from 0.1 K to 200 K under magnetic fields up to 10 tesla, and the thermoelectric power S from 2 K to 200 K. The logarithmic increase of R in the low temperature range (below 20 K for example) was observed for all the present samples. This increase of R was found to stay unchanged even under a strong magnetic field of as much as 10 tesla. The curves of S as a function of temperature T showed a normal metal behavior without any Kondo type anomaly. Possible origins of the logarithmic increase of R are discussed.
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© The Physical Society of Japan 2001
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