Vortex Imaging in the pi-Band of Magnesium Diboride

Details Vortex Imaging in the pi-Band of Magnesium Diboride Vortex Imaging in the pi-Band of Magnesium Diboride

2002-07-16

arxiv.org/abs/cond-mat/0207394v1

Phys. Rev. Lett. 89, 187003 (2002)

Physics

Condensed Matter

Superconductivity

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.89.187003

We report scanning tunneling spectroscopy imaging of the vortex lattice in single crystalline MgB2. By tunneling parallel to the c-axis, a single superconducting gap (Delta = 2.2 meV) associated with the pi-band is observed. The vortices in the pi-band have a large core size compared to estimates based on Hc2, and show an absence of localized states in the core. Furthermore, superconductivity between the vortices is rapidly suppressed by an applied field. These results suggest that superconductivity in the pi-band is, at least partially, induced by the intrinsically superconducting sigma-band.

Affiliated with

Also associated with

No associations

Rating

Vortex Imaging in the pi-Band of Magnesium Diboride 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 Vortex Imaging in the pi-Band of Magnesium Diboride, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vortex Imaging in the pi-Band of Magnesium Diboride will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-42754