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arXiv · 1106.3852

Evidence of quantum phase slip effect in titanium nanowires

Janne Lehtinen·Timo Sajavaara·Konstantin Arutyunov·Alexander Vasiliev
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Abstract

Electron transport properties of titanium nanowires were experimentally studied. Below the effective diameter $\lesssim$ 50 nm all samples demonstrated a pronounced broadening of the $R(T)$ dependencies, which cannot be accounted for thermal flcutuations. An extensive microscopic and elemental analysis indicates the absence of structural or/and geometrical imperfection capable to broaden the the $R(T)$ transition to such an extent. We associate the effect with quantum flucutuations of the order parameter.

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Janne Lehtinen, Timo Sajavaara, Konstantin Arutyunov, Alexander Vasiliev. 2011-06-20. Evidence of quantum phase slip effect in titanium nanowires. https://doi.org/10.1103/physrevb.85.094508

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