Temperature dependence of lower critical field in stripe ordered La1.6-xNd0.4SrxCuO4 superconductors
arXiv:1512.04934 · doi:10.1016/j.physc.2015.12.005
Abstract
We report detailed measurements of the temperature dependence of the lower critical field Hc1 in the stripe ordered La1.6-xNd0.4SrxCuO4 (x = 0.10 and 0.15) superconductors. It is found that Hc1(T) of the samples increase with decreasing temperature and show an negative curvature below Tc. The penetration depth λ(T) estimated from Hc1(T) data satisfies a linear temperature dependence behavior below Tc/2, which is consistent with that in a superconductor with d-wave symmetry of the energy gap and the upward trend in Hc1(T) may be due to the cooperation of the hole and election pockets arising from the reconstruction of the Fermi surface, which contributes to illustrating the Fermi surface reconstruction in La1.6-xNd0.4SrxCuO4.
References in corpus (10)
- Quantum oscillations and the Fermi surface in an underdoped high-Tc superconductor
- Density functional study of FeS, FeSe and FeTe: Electronic structure, magnetism, phonons and superconductivity
- Universal quantum oscillations in the underdoped cuprate superconductors
- Fermi Surface Evolution in an Electron-Doped High-Tc Superconductor Revealed by Magnetic Quantum Oscillations
- Evidence for Two Gaps and Breakdown of the Uemura Plot in BaKFeAs Single Crystals
- Connecting high-field quantum oscillations to zero-field electron spectral functions in the underdoped cuprates
- Evidence for a small hole pocket in the Fermi surface of underdoped YBa2Cu3Oy
- Superfluid response in electron-doped cuprate superconductors
- High temperature superconductivity: from complexity to simplicity
- Hall and Seebeck coefficients from bi-directional charge density wave state in high- cuprates