Dispersive excitations in the high-temperature superconductor La 2-xSrxCuO4

N. B. Christensen, D. F. McMorrow, H. M. Rønnow, B. Lake, S. M. Hayden, G. Aeppli, T. G. Perring, M. Mangkorntong, M. Nohara, H. Takagi

Research output: Contribution to journalArticlepeer-review

142 Citations (Scopus)


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.

Original languageEnglish
Article number147002
Pages (from-to)147002-1-147002-4
JournalPhysical Review Letters
Issue number14
Publication statusPublished - Oct 1 2004
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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