The use of high-resolution neutron scattering for the dispersive excitations in high-temperature superconductor La2-xSr xCuO4 was analyzed. Investigations show that the associated velocity in La2-xSrxCuO4 was weakly dependent on doping. It was found that the excitations broaden rapidly with the increasing energy and bear a remarkable resemblance to multiparticle excitations observed in 1D S = 1/2 antiferromagnets. The results show that the spin and electronic response functions measured by the neutrons for different materials, displayed nearly identical dispersions.
ASJC Scopus subject areas
- Physics and Astronomy(all)