Wave nature of conduction electrons in amorphous Co 90 Sc 10 and Fe 90 Sc 10 alloys

The resistivity of amorphous Fe Sc and Co Sc alloys can be described well in terms of a simple model based on the wave character of electrons and their associated tunnelling over the temperature ranges ~1.9 K to 135 K and ~1.9 K to 12 K respectively. The extended range of agreement between experimen...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2018-11, Vol.30 (45), p.455701
Main Authors: Ghafari, M, Louzguine-Luzgin, D V, Hutchison, W D, Feng, T, Campbell, S J
Format: Article
Language:English
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Summary:The resistivity of amorphous Fe Sc and Co Sc alloys can be described well in terms of a simple model based on the wave character of electrons and their associated tunnelling over the temperature ranges ~1.9 K to 135 K and ~1.9 K to 12 K respectively. The extended range of agreement between experiment and theory for amorphous Fe Sc is linked with its relatively small mean free path of [Formula: see text]  =  0.32 nm, thus allowing electron waves to tunnel between clusters. On the other hand the restricted region of tunnelling of electron waves for amorphous Co Sc alloys is linked with its relatively large mean free path of [Formula: see text]  =  0.48 nm which restricts the ability for tunnelling between clusters while enabling electron waves to tunnel between different regions with a cluster.
ISSN:0953-8984
1361-648X
DOI:10.1088/1361-648X/aae505