Spin dynamics and ordering of a cuprate stripe-antiferromagnet

G. B. Teitel'baum; I. M. Abu-Shiekah; O. Bakharev; H. B. Brom; J. Zaanen

doi:10.1103/PhysRevB.63.020507

Spin dynamics and ordering of a cuprate stripe-antiferromagnet

Strongly Correlated Electrons 2009-10-31 v2 Superconductivity

Authors: G. B. Teitel'baum , I. M. Abu-Shiekah , O. Bakharev , H. B. Brom , J. Zaanen

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Abstract

In La1.48Nd0.4Sr0.12CuO4 the 139La and 63Cu NQR relaxation rates and signal wipe-out upon lowering temperature are shown to be due to purely magnetic fluctuations. They follow the same renormalized classical behavior as seen in neutron data, when the electronic spins order in stripes, with a small spread in spin stiffness (15% spread in activation energy). The La signal, which reappears at low temperatures, is magnetically broadened and experiences additional wipe-out due to slowing down of the Nd fluctuations.

Keywords

cuprate stripe antiferromagnet spin dynamics NQR spin stiffness magnetic fluctuations neutron scattering

Cite

@article{arxiv.cond-mat/0007057,
  title  = {Spin dynamics and ordering of a cuprate stripe-antiferromagnet},
  author = {G. B. Teitel'baum and I. M. Abu-Shiekah and O. Bakharev and H. B. Brom and J. Zaanen},
  journal= {arXiv preprint arXiv:cond-mat/0007057},
  year   = {2009}
}

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4 pages including 3 figures - ref. 16 added

Spin dynamics and ordering of a cuprate stripe-antiferromagnet

Abstract

Keywords

Cite

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