Probing the superconducting gap symmetry of PrOs$_{4}$Sb$_{12}$: A penetration depth study

Details Probing the superconducting gap symmetry of PrOs$_{4}$Sb$_{12}$: A penetration depth study Probing the superconducting gap symmetry of PrOs$_{4}$Sb$_{12}$: A penetration depth study

2003-08-22

arxiv.org/abs/cond-mat/0308454v2

Physical Review Letters, vol. 91, article no. 247003 (2003)

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1103/PhysRevLett.91.247003

We report measurements of the magnetic penetration depth $\lambda$ in single crystals of PrOs$_{4}$Sb$_{12}$ down to $\sim$0.1 K using a tunnel-diode based, self-inductive technique at 21 MHz, with the ac field applied along the \textit{a}, \textit{b} and \textit{c} directions. In all three field orientations the penetration depth and superfluid density $\rho_{s}$ tend to follow a power law, $\lambda \sim \mathit{T}^{2}, \rho_{s} \sim \mathit{T}% ^{2}$ at low temperatures. $\rho_{s}$ for various gap functions have been calculated, and data is best fit by the $^{3}$He A-phase-like gap with multidomains, each having two point nodes along a cube axis, and parameter $\Delta_{0}$(0)/\textit{k}$_{B}$\textit{T}$_{c}$ = 2.6. This suggests that PrOs$_{4}$Sb$_{12}$ is a strong-coupling superconductor with two point nodes on the Fermi surface. We also confirm the observation of the double transitions at 1.75 K and 1.85 K seen in other measurements.

Affiliated with

Also associated with

No associations

Rating

Probing the superconducting gap symmetry of PrOs$_{4}$Sb$_{12}$: A penetration depth study 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 Probing the superconducting gap symmetry of PrOs$_{4}$Sb$_{12}$: A penetration depth study, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing the superconducting gap symmetry of PrOs$_{4}$Sb$_{12}$: A penetration depth study will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-385267