2003/04/02 by C. Panagopoulos, T. Xiang, Tao Xiang +5 · 1 citation
Materials Science · Physics and Astronomy · #Iron-based superconductors research #Physics of Superconductivity and Magnetism #Superconductivity in MgB2 and Alloys #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.67.220502
published as Phys. Rev. B Vol. 67, 220502 (2003) (Rapid Comm.) · 3 pages, 5 figures
arxiv created 2003/04/02 · openalex publication_date 2003/06/11 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We have studied the doping dependence of the in-plane and out-of-plane superfluid density \ensuremathρs(0) of two-monolayer high-Tc superconductors, HgBa2CuO_4+\ensuremathδ and La_2\ensuremath-xSrxCuO4, using the low-frequency ac susceptibility and the muon-spin-relaxation techniques. For both superconductors, \ensuremathρs(0) increases rapidly with doping in the underdoped and optimally doped regimes and becomes nearly doping independent above a critical doping, pc\ensuremath∼0.20.