Magnetic field distribution and characteristic fields of the vortex lattice for a clean superconducting niobium sample in an external field applied along a three-fold axis
A. Yaouanc, A. Maisuradze, N. Nakai, K. Machida, R. Khasanov, A. Amato, P. K. Biswas, C. Baines, D. Herlach, R. Henes, P. Keppler, H. Keller
DOI 10.1103/PhysRevB.89.184503 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The field distribution in the vortex lattice of a pure niobium single crystal with an external field applied along a three-fold axis has been investigated by the transverse-field muon-spin-rotation (TF-μSR) technique over a wide range of temperatures and fields. The experimental data have been analyzed with Delrieu's solution for the form factor supplemented by phenomenological formulas for the parameters. This has enabled us to experimentally establish the temperatures and fields for Delrieu's, Ginzburg and Landau's, and Klein's regions of the vortex lattice. Using the numerical solution of the quasiclassical Eilenberger equation, the experimental results have been reasonably understood. They should apply to all clean BCS superconductors. Delrieu's analytical model supplemented by phenomenological formulas for its parameters is found to be reliable for analyzing TF-μSR experimental data for a substantial part of the mixed phase. Abrikosov's limit is contained in it.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 9.25 | Pressure not reported | unknown |
Similar papers
Surface superconductivity, positive field cooled magnetization, and peak-effect phenomenon observed in a spherical single crystal of niobium
similarity 0.93Pradip Das et al.
Source status unknown — claims are unverified
Analysis of magnetic vortex dissipation in Sn-segregated boundaries in Nb3Sn superconducting RF cavities
similarity 0.93Jared Carlson et al.
Source status unknown — claims are unverified
Critical fields for vortex expulsion from narrow superconducting strips
similarity 0.92P. Sánchez-Lotero & J. J. Palacios
Source status unknown — claims are unverified
Excess current in ferromagnet-superconductor structures with fully polarized triplet component
similarity 0.92Andreas Moor et al.
Source status unknown — claims are unverified
Tuning vortex confinement by magnetic domains in a superconductor/ferromagnet bilayer
similarity 0.92Marta Z. Cieplak et al.
Source status unknown — claims are unverified
Magnetic field distribution and characteristic fields of the vortex lattice for a clean superconducting niobium sample in an external field applied along a three-fold axis
similarity 0.92A. Yaouanc et al. · 2014 · arXiv:1405.3087
Source status unknown — claims are unverified