Superconducting density of states and vortex cores of 2H-NbS2

Details Superconducting density of states and vortex cores of 2H-NbS2 Superconducting density of states and vortex cores of 2H-NbS2

2008-07-11

arxiv.org/abs/0807.1809v1

Physics

Condensed Matter

Superconductivity

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.101.166407

Scanning tunneling microscopy and spectroscopy (STM/S) measurements in the superconducting dichalcogenide 2H-NbS2 show a peculiar superconducting density of states with two well defined features at 0.97 meV and 0.53 meV, located respectively above and below the value for the superconducting gap expected from single band s-wave BCS model (D=1.76kBTc=0.9 meV). Both features have a continuous temperature evolution and disappear at Tc = 5.7 K. Moreover, we observe the hexagonal vortex lattice with radially symmetric vortices and a well developed localized state at the vortex cores. The sixfold star shape characteristic of the vortex lattice of the compound 2H-NbSe2 is, together with the charge density wave order (CDW), absent in 2H-NbS2.

Affiliated with

Also associated with

No associations

Rating

Superconducting density of states and vortex cores of 2H-NbS2 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 Superconducting density of states and vortex cores of 2H-NbS2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconducting density of states and vortex cores of 2H-NbS2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-575830