Weak anisotropy of the superconducting upper critical field in Fe1.11Te0.6Se0.4 single crystals

Details Weak anisotropy of the superconducting upper critical field in Fe1.11Te0.6Se0.4 single crystals Weak anisotropy of the superconducting upper critical field in Fe1.11Te0.6Se0.4 single crystals

2009-09-29

arxiv.org/abs/0909.5328v1

Phys. Rev. B 81, 020509(2010)

Physics

Condensed Matter

Superconductivity

4 pages, 4 figures, submit to PRL

Scientific paper

10.1103/PhysRevB.81.020509

We have determined the resistive upper critical field Hc2 for single crystals of the superconductor Fe1.11Te0.6Se0.4 using pulsed magnetic fields of up to 60T. A rather high zero-temperature upper critical field of mu0Hc2(0) approx 47T is obtained, in spite of the relatively low superconducting transition temperature (Tc approx 14K). Moreover, Hc2 follows an unusual temperature dependence, becoming almost independent of the magnetic field orientation as the temperature T=0. We suggest that the isotropic superconductivity in Fe1.11Te0.6Se0.4 is a consequence of its three-dimensional Fermi-surface topology. An analogous result was obtained for (Ba,K)Fe2As2, indicating that all layered iron-based superconductors exhibit generic behavior that is significantly different from that of the high-Tc cuprates.

Affiliated with

Also associated with

No associations

Rating

Weak anisotropy of the superconducting upper critical field in Fe1.11Te0.6Se0.4 single crystals 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 Weak anisotropy of the superconducting upper critical field in Fe1.11Te0.6Se0.4 single crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Weak anisotropy of the superconducting upper critical field in Fe1.11Te0.6Se0.4 single crystals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-664820