Superconductor-ferromagnet nanocomposites created by co-deposition of niobium and dysprosium

Details Superconductor-ferromagnet nanocomposites created by co-deposition of niobium and dysprosium Superconductor-ferromagnet nanocomposites created by co-deposition of niobium and dysprosium

2009-03-18

arxiv.org/abs/0903.3142v2

R. B. Dinner, S. Sahonta, R. Yu, N. A. Stelmashenko, J. L. MacManus-Driscoll and M. G. Blamire, Supercond. Sci. Technol. 22 (2

Physics

Condensed Matter

Superconductivity

7 pages, 7 figures. Matches the version published in SUST: Added one reference and some discussion in Section 5

Scientific paper

10.1088/0953-2048/22/7/075001

We have created superconductor-ferromagnet composite films in order to test the enhancement of critical current density, Jc, due to magnetic pinning. We co-sputter the type-II superconductor niobium (Nb) and the low-temperature ferromagnet dysprosium (Dy) onto a heated substrate; the immiscibility of the two materials leads to a phase-separated composite of magnetic regions within a superconducting matrix. Over a range of compositions and substrate temperatures, we achieve phase separation on scales from 5 nm to 1 micron. The composite films exhibit simultaneous superconductivity and ferromagnetism. Transport measurements show that while the self-field Jc is reduced in the composites, the in-field Jc is greatly enhanced up to the 3 T saturation field of Dy. In one instance, the phase separation orders into stripes, leading to in-plane anisotropy in Jc.

Affiliated with

Also associated with

No associations

Rating

Superconductor-ferromagnet nanocomposites created by co-deposition of niobium and dysprosium 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 Superconductor-ferromagnet nanocomposites created by co-deposition of niobium and dysprosium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconductor-ferromagnet nanocomposites created by co-deposition of niobium and dysprosium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-401580