Magnetic field penetration depth of polycrystalline (Y,Gd), grain-aligned , and single-crystal
- 1 August 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 40 (4), 2674-2677
- https://doi.org/10.1103/physrevb.40.2674
Abstract
The magnetic field penetration depths λ(T) of the title compounds are determined from high-field (H=2.5 to 5 T) magnetization M versus applied magnetic field H isotherms, by use of a new method of data analysis in the region ≪H≪ where M is reversible and linear in the logarithm of H. All of the λ(T) results are consistent with behavior expected from BCS theory, indicating a nodeless superconducting order parameter. The magnitudes of λ(0) are similar to reported values obtained using independent methods.
Keywords
This publication has 20 references indexed in Scilit:
- Muon-spin-rotation measurement of magnetic field penetration and flux pinning in superconductingPhysical Review B, 1989
- Direct Measurement of the Temperature-Dependent Magnetic Penetration Depth in Y-Ba-Cu-O CrystalsPhysical Review Letters, 1989
- Magnetic penetration depth in single-crystalPhysical Review B, 1989
- Systematic variation of magnetic-field penetration depth in high-superconductors studied by muon-spin relaxationPhysical Review B, 1988
- μSR investigations of the magnetic flux penetration in the mixed state of the high temperature superconductorsPhysica C: Superconductivity and its Applications, 1988
- Determination of the London penetration depth on YBa2Cu3O7 fine particlesPhysica C: Superconductivity and its Applications, 1988
- Muon depolarization and magnetic field penetration depth in superconductingPhysical Review B, 1988
- Initial susceptibility and microwave absorption in powder samples of Y1Ba2Cu3O6.9Physica C: Superconductivity and its Applications, 1988
- Determination of the magnetic field penetration depth in superconducting yttrium barium copper oxide: Deviations from the Bardeen-Cooper-Schrieffer lawsPhysical Review B, 1988
- Temperature dependence of the magnetic penetration depth in the high- superconductor : Evidence for conventional -wave pairingPhysical Review B, 1987