Spin Pseudo Gap in La2-xSrxCuO4 Studied by Neutron Scattering

Details Spin Pseudo Gap in La2-xSrxCuO4 Studied by Neutron Scattering Spin Pseudo Gap in La2-xSrxCuO4 Studied by Neutron Scattering

2002-09-10

arxiv.org/abs/cond-mat/0209225v2

Phys. Rev. B 67 (2003) 134521

Physics

Condensed Matter

Superconductivity

revtex, 7 pages, 8 eps figures, PRB (2003) in press

Scientific paper

10.1103/PhysRevB.67.134521

Spin excitations of La2-xSrxCuO have been studied using inelastic neutron scattering techniques in the energy range of 2 meV =< w =< 12 meV and the temperature range of 8 K =< T =< 150 K. We observed a signature of a spin pseudo gap in the excitation spectrum above Tc for the slightly overdoped sample with x = 0.18. On heating, the spin pseudo gap gradually collapses between T = 80 K and 150 K. For the x = 0.15 and 0.20, although the visibility of gap-like structure at T ~ Tc is lower compared to the x = 0.18 sample, the broad bump of kai"(w) appears at w ~ 5 meV,close to the spin-gap energy at base temperature, suggests the existence of the spin pseudo gap in the normal state.

Affiliated with

Also associated with

No associations

Rating

Spin Pseudo Gap in La2-xSrxCuO4 Studied by Neutron Scattering does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spin Pseudo Gap in La2-xSrxCuO4 Studied by Neutron Scattering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin Pseudo Gap in La2-xSrxCuO4 Studied by Neutron Scattering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-368627