Tuning superconductivity by magnetic fields in Eu(Fe0.81Co0.19)2As2

Details Tuning superconductivity by magnetic fields in Eu(Fe0.81Co0.19)2As2 Tuning superconductivity by magnetic fields in Eu(Fe0.81Co0.19)2As2

2011-12-06

arxiv.org/abs/1112.1189v1

Physics

Condensed Matter

Superconductivity

Scientific paper

The distinct difference between BCS-type and unconventional triplet superconductivity manifests itself in their response to external magnetic fields. An applied field easily extinguishes s-wave singlet superconductivity by both the paramagnetic or orbital pair-breaking effects. However, it hardly destroys triplet state because the paramagnetic effect, owing to spins of the Cooper pairs readily aligned with the field, is not so efficacious. This suggests that the triplet superconductivity may be affected mostly by the orbital effect. Conversely, if one can break down the orbital effect then one can recover the superconductivity. Here, we show that superconductivity can be induced with magnetic fields applied parallel to the ab plane of crystals of the magnetic Eu(Fe0.81Co0.19)2As2 superconductor. We argue that the tuning superconductivy may be actuated by relative enhancement of ferromagnetic interactions between the Eu2+ moments lying in adjacent layers and removal of their canting toward c axis that is present in zero field.

Affiliated with

Also associated with

No associations

Rating

Tuning superconductivity by magnetic fields in Eu(Fe0.81Co0.19)2As2 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 Tuning superconductivity by magnetic fields in Eu(Fe0.81Co0.19)2As2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tuning superconductivity by magnetic fields in Eu(Fe0.81Co0.19)2As2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-380421