MgB2 magnetometer with a directly coupled pick-up loop


Portesi, C. and Mijatovic, D. and Veldhuis, D. and Brinkman, A. and Monticone, E. and Gonnelli, R.S. (2006) MgB2 magnetometer with a directly coupled pick-up loop. Superconductor Science and Technology, 19 (5). S303-S306. ISSN 0953-2048

[img] PDF
Restricted to UT campus only
: Request a copy
Abstract: magnetometer with a directly coupled pick-up loop. We used an all in situ technique for fabricating magnesium diboride films, which consists of the co-evaporation of B and Mg by means of an e-gun and a resistive heater respectively. Consequently, we realized the superconducting device, which incorporates two nanobridges as weak links in a superconducting loop. The nanobridges were realized by focused ion beam milling; they were 240 nm wide and had a critical current density of 107 A cm−2. The magnetometer was characterized at different temperatures and also measurements of the noise levels have been performed. The device shows Josephson quantum interference up to 20 K and the calculated effective area at low temperatures was 0.24 mm2. The transport properties of the magnetometer allow determining fundamental materials properties of the MgB2 thin films, such as the penetration depth.
Item Type:Article
Copyright:© IOP Publishing
Science and Technology (TNW)
Research Group:
Link to this item:
Official URL:
Export this item as:BibTeX
HTML Citation
Reference Manager


Repository Staff Only: item control page

Metis ID: 233377