Physics – Condensed Matter – Superconductivity
Scientific paper
2002-05-27
Physics Letters A, Vol. 299 (2-3) (2002) pp. 282-286.
Physics
Condensed Matter
Superconductivity
4 pages, 4 figures. To be published in Physics Letters A
Scientific paper
Last year, iron was reported to become superconducting at temperatures below 2K and pressures between 15 and 30 GPa. The evidence presented was a weak resistivity drop, suppressed by a magnetic field above 0.2 T, and a small Meissner signal. However, a compelling demonstration, such as the occurrence of zero resistance, was lacking. Here we report the measurement of a complete resistive transition at 22.2 GPa with an onset slightly above 2 K in two very pure samples of iron, of different origins. The superconductivity appears unusually sensitive to disorder, developing only when the electronic mean free path is above a threshold value, while the normal state resistivity is characteristic of a nearly ferromagnetic metal.
Behr Günter
Holmes Alexander T.
Inada Yasuhiro
Jaccard Didier
Onuki Yoshichika
No associations
LandOfFree
Superconductivity of epsilon-Fe: complete resistive transition does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Superconductivity of epsilon-Fe: complete resistive transition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconductivity of epsilon-Fe: complete resistive transition will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-396858