High critical-current density and scaling of phase-slip processes in YBaCuO nanowires

Autor:	Papari, G., Carillo, F., Stornaiuolo, D., Longobardi, L., Beltram, F., Tafuri, F.
Rok vydání:	2012
Předmět:	Condensed Matter - Superconductivity
Zdroj:	Supercond. Sci. Technol. 25, 035011 (2012)
Druh dokumentu:	Working Paper
DOI:	10.1088/0953-2048/25/3/035011
Popis:	YBaCuO nanowires were reproducibly fabricated down to widths of 50 nm. A Au/Ti cap layer on YBCO yielded high electrical performance up to temperatures above 80 K in single nanowires. Critical current density of tens of MA/cm2 at T = 4.2 K and of 10 MA/cm2 at 77 K were achieved that survive in high magnetic fields. Phase-slip processes were tuned by choosing the size of the nanochannels and the intensity of the applied external magnetic field. Data indicate that YBCO nanowires are rather attractive system for the fabrication of efficient sensors, supporting the notion of futuristic THz devices. Comment: 8 pages, 3 figures. Accepted for publication in Superconductor Science and Technology
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1201.1886 Zobrazit plný text záznamu View this record from Arxiv