Abstract
The measurements of Mossbauer effect, magnetic susceptibility and muon spin relaxation have been carried out for the high-T c superconductor La2-xBaxCuO4. The intensity of Mossbauer doublet spectrum of the sample of x∼1/8 begins to decrease rapidly at a certain temperature T M, which we define as a magnetic transition temperature T Moss. This temperature almost agrees with T c determined from muon spin relaxation. The quadrupole doublet disappears at low temperature below Tm but a clearly splitted spectrum is not observed even at 4.2 K, which indicates a peculiar magnetic state with a wide distribution of internal magnetic field. Around x∼1/8, the superconducting critical temperature T c and T m are competed each other. In conclusion, superconductivity disappears around 1/8 hole concentration and a peculiar magnetic state such as spin density wave appears.
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.
