Abstract
Static, dynamical spin correlations in high-Tc superconductor studied by neutron scattering are reviewed based on our recent work on hole-doped La2Cu04. Spin correlation in the superconducting phase exhibits a long period spatial modulation. The doping, temperature, energy dependences of the spin fluctuations revealed a concordant relation between the incommensurate dynamical spin correlation, superconductivity. No-well defined spin correlation exists beyond the upper critical doping of the superconducting phase. Below Tc, a well-defined energy-gap of ~7meV opens in the dynamical spin susceptibility for the optimally doped or slightly overdoped phases. In contrast, no well-defined energy-gap opens for the underdoped samples. In addition to the dynamical spin fluctuations, a long range incommensurate static magnetic order is observed around 1/8-doping in the superconducting states. For x=0.12, the onset temperature of the magnetic order is highest, corresponds to Tc.
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.
