Evidence of quantum phase slip effect in titanium nanowires

Autor:	Lehtinen, Janne, Sajavaara, Timo, Arutyunov, Konstantin, Vasiliev, Alexander
Rok vydání:	2011
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Phys. Rev. B 85, 094508 (2012)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.85.094508
Popis:	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. Comment: 6 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1106.3852 Zobrazit plný text záznamu View this record from Arxiv