Magnetic correlations in La2-xSrxCoO4 studied by neutron scattering : possible evidence for stripe phases

M. Cwik; M. Benomar; T. Finger; Y. Sidis; D. Senff; T. Lorenz; M. Braden

doi:10.1103/PhysRevLett.102.057201

Magnetic correlations in La2-xSrxCoO4 studied by neutron scattering : possible evidence for stripe phases

Strongly Correlated Electrons 2009-11-13 v1

Authors: M. Cwik , M. Benomar , T. Finger , Y. Sidis , D. Senff , T. Lorenz , M. Braden

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Abstract

Spin correlations in LSCO have been studied by neutron scattering. The commensurate antiferromagnetic order of the parent compound persists on a very short range up to a Sr content of x=0.3, whereas small amounts of Sr suppress commensurate antiferromagnetism in cuprates and in nickelates. For x>0.3 we find incommensurate spin ordering with the modulation closely following the amount of doping. These incommensurate phases strongly resemble the stripe phases observed in cuprates and nickelates, but incommensurate magnetic ordering appears only at larger Sr content in the cobaltates due to a reduced charge mobility.

Keywords

magnetic correlations neutron scattering stripe phases La2-xSrxCoO4 incommensurate spin ordering

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@article{arxiv.0808.0106,
  title  = {Magnetic correlations in La2-xSrxCoO4 studied by neutron scattering : possible evidence for stripe phases},
  author = {M. Cwik and M. Benomar and T. Finger and Y. Sidis and D. Senff and T. Lorenz and M. Braden},
  journal= {arXiv preprint arXiv:0808.0106},
  year   = {2009}
}

Magnetic correlations in La2-xSrxCoO4 studied by neutron scattering : possible evidence for stripe phases

Abstract

Keywords

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