Unusual interplay between copper-spin and vortex dynamics in slightly overdoped La{1.83}Sr{0.17}CuO{4}

R. Gilardi; A. Hiess; N. Momono; M. Oda; M. Ido; J. Mesot

doi:10.1209/epl/i2003-10265-1

Unusual interplay between copper-spin and vortex dynamics in slightly overdoped La{1.83}Sr{0.17}CuO{4}

Superconductivity 2009-11-10 v1 Strongly Correlated Electrons

Authors: R. Gilardi , A. Hiess , N. Momono , M. Oda , M. Ido , J. Mesot

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Abstract

Our inelastic neutron scattering experiments of the spin excitations in the slightly overdoped La{1.83}Sr{0.17}CuO{4} compound show that, under the application of a magnetic field of 5 Tesla, the low-temperature susceptibility undergoes a weight redistribution centered at the spin-gap energy. Furthermore, by comparing the temperature dependence of the neutron data with ac-susceptibility and magnetization measurements, we conclude that the filling in of the spin gap tracks the irreversibility/melting temperature rather than Tc2, which indicates an unusual interplay between the magnetic vortices and the spin excitations even in the slightly overdoped regime of high-temperature superconductors.

Keywords

La1.83Sr0.17CuO4 spin excitations vortex dynamics neutron scattering spin gap high-temperature superconductors

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@article{arxiv.cond-mat/0310298,
  title  = {Unusual interplay between copper-spin and vortex dynamics in slightly overdoped La{1.83}Sr{0.17}CuO{4}},
  author = {R. Gilardi and A. Hiess and N. Momono and M. Oda and M. Ido and J. Mesot},
  journal= {arXiv preprint arXiv:cond-mat/0310298},
  year   = {2009}
}

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7 pages, including 5 figures

Unusual interplay between copper-spin and vortex dynamics in slightly overdoped La{1.83}Sr{0.17}CuO{4}

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