Abstract
We report on superconducting and magnetic characteristics in four-layered high-Tc superconductors Ba2Ca3Cu4O8(FyO1−y)2 with apical fluorine through 63Cu-NMR measurements. The temperature dependence of the Knight shift shows that the substitution of oxygen for fluorine at the apical site increases carrier density (Nh) and Tc from 55 up to 102 K. The 63Cu-NMR spectra suggest that antiferromagnetic (AFM) order takes place in underdoped CuO2 layers; especially, the AFM order coexists with superconductivity in a single CuO2 plane at y=1.0.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
