Evidence of quantum phase slip effect in titanium nanowires

Details Evidence of quantum phase slip effect in titanium nanowires Evidence of quantum phase slip effect in titanium nanowires

2011-06-20

arxiv.org/abs/1106.3852v1

Physics

Condensed Matter

Superconductivity

6 pages, 6 figures

Scientific paper

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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