High resolution thermal imaging of hotspots in superconducting films
Artikel i vetenskaplig tidskrift, 2007

Thermal imaging of hotspots in bridge structures of YbaCuO thin films is presented with micrometer resolution. Hotspots formed by passing transport currents are observed using a method based on the temperature dependence in the photoluminescence of a polymer thin film deposited on the superconductor. The hotspots are self maintained and have hysteretic behavior. An external magnetic field changes their behavior. The temperature distribution over the bridge and in its vicinity can be observed with a resolution better than 0.1 K. Also details of the experimental method will be reported.

Författare

O. Haugen

Universitetet i Oslo

T. H. Johansen

Universitetet i Oslo

H. Chen

Universitetet i Oslo

V. Yurchenko

Universitetet i Oslo

P. Vase

NKT Research & Innovation AS

Dag Winkler

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

B. A. Davidson

Laboratorio Nazionale TASC

Gabriel Testa

National Reseach Council of Italy (CNR), Institute of Applied Sciences and Intelligent Systems "Eduardo Caianiello"

E. Sarnelli

National Reseach Council of Italy (CNR), Institute of Applied Sciences and Intelligent Systems "Eduardo Caianiello"

E. Altshuler

Universidad de La Habana

IEEE Transactions on Applied Superconductivity

1051-8223 (ISSN)

Vol. 17 2/3 3215-3218

Ämneskategorier

Fysik

DOI

10.1109/TASC.2007.899341

Mer information

Senast uppdaterat

2018-05-08