Highly Anisotropic Gap Function in Borocarbide Superconductor LuNi_2B_2C

Details Highly Anisotropic Gap Function in Borocarbide Superconductor LuNi_2B_2C Highly Anisotropic Gap Function in Borocarbide Superconductor LuNi_2B_2C

2001-08-25

arxiv.org/abs/cond-mat/0108409v2

Phys. Rev. Lett. 87, 237001 (2001)

Physics

Condensed Matter

Superconductivity

5 pages, 3 figures, Revised version, as appears in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.87.237001

The thermal conductivity of borocarbide superconductor LuNi_2B_2C was measured down to 70 mK (T_c/200) in a magnetic field perpendicular to the heat current from H = 0 to above H_c2 = 7 T. As soon as vortices enter the sample, the conduction at T -> 0 grows rapidly, showing unambiguously that delocalized quasiparticles are present at the lowest energies. The field dependence is very similar to that of UPt_3, a heavy-fermion superconductor with a line of nodes in the gap, and very different from the exponential dependence characteristic of s-wave superconductors. This is strong evidence for a highly anisotropic gap function in LuNi_2B_2C, possibly with nodes.

Affiliated with

Also associated with

No associations

Rating

Highly Anisotropic Gap Function in Borocarbide Superconductor LuNi_2B_2C 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 Highly Anisotropic Gap Function in Borocarbide Superconductor LuNi_2B_2C, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly Anisotropic Gap Function in Borocarbide Superconductor LuNi_2B_2C will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-387205