Physics – Condensed Matter – Superconductivity
Scientific paper
2007-05-23
Phys. Rev. B 76, 094501 (2007).
Physics
Condensed Matter
Superconductivity
10 pages, 9 figures
Scientific paper
10.1103/PhysRevB.76.094501
Local magnetic field distribution B(r) in the mixed state of a boride superconductor, YB6, is studied by muon spin rotation (muSR). A comparative analysis using the modified London model and Ginzburg-Landau (GL) model indicates that the GL model exhibits better agreement with muSR data at higher fields, thereby demonstrating the importance of reproducing the field profile near the vortex cores when the intervortex distance becomes closer to the GL coherence length. The temperature and field dependence of magnetic penetration depth ($\lambda$) does not show any hint of nonlocal effect nor of low-lying quasiparticle excitation. This suggests that the strong coupling of electrons to the rattling motion of Y ions in the boron cage suggested by bulk measurements gives rise to a conventional superconductivity with isotropic s-wave pairing. Taking account of the present result, a review is provided for probing the anisotropy of superconducting order parameters by the slope of $\lambda$ against field.
Akimitsu Jun
Higemoto Wataru
Kadono Ryosuke
Koda Akihiro
Kuroiwa S.
No associations
LandOfFree
Microscopic properties of vortex state in YB6 probed by muon spin rotation 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 Microscopic properties of vortex state in YB6 probed by muon spin rotation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microscopic properties of vortex state in YB6 probed by muon spin rotation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-401311