@article{fd619781a8ac4c44bcf648c7d1e2fb5b,
title = "Dispersive excitations in the high-temperature superconductor La 2-xSrxCuO4",
abstract = "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.",
author = "Christensen, {N. B.} and McMorrow, {D. F.} and R{\o}nnow, {H. M.} and B. Lake and Hayden, {S. M.} and G. Aeppli and Perring, {T. G.} and M. Mangkorntong and M. Nohara and H. Takagi",
note = "Funding Information: We acknowledge stimulating discussions with B. M{\o}ller Andersen, S. Davis, S. Chakravarty, T. Giammarchi, P. Hedeg{\aa}rd, S. Kivelson, K. Lefmann, and J. Mesot, and are especially grateful to T. Rosenbaum for his support through the National Science Foundation Grant No. DMR-0114798. Work in London was supported by a Wolfson Royal Society Research Merit Award and the Basic Technology program of the UK research councils, while that in Ris{\o} was supported by the Danish Natural Science Council via DanScatt and the Danish Technical Research Council under the Framework Program on Superconductivity.",
year = "2004",
month = oct,
day = "1",
doi = "10.1103/PhysRevLett.93.147002",
language = "English",
volume = "93",
pages = "147002--1--147002--4",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "14",
}