Magnetic order and dynamics of the charge-ordered antiferromagnet La 1.5 Sr 0.5 CoO 4

@article{Helme2009MagneticOA,
  title={Magnetic order and dynamics of the charge-ordered antiferromagnet La 1.5 Sr 0.5 CoO 4},
  author={L. Helme and A. Boothroyd and R. Coldea and D. Prabhakaran and C. Frost and D. Keen and L. Regnault and P. Freeman and M. Enderle and J. Kulda},
  journal={Physical Review B},
  year={2009},
  volume={80},
  pages={134414}
}
  • L. Helme, A. Boothroyd, +7 authors J. Kulda
  • Published 2009
  • Physics
  • Physical Review B
  • We describe neutron-scattering experiments performed to investigate the magnetic order and dynamics of half-doped ${\text{La}}_{1.5}{\text{Sr}}_{0.5}{\text{CoO}}_{4}$. This layered perovskite exhibits a near-ideal checkerboard pattern of ${\text{Co}}^{2+}/{\text{Co}}^{3+}$ charge order at temperatures below $\ensuremath{\sim}800\text{ }\text{K}$. Magnetic correlations are observed at temperatures below $\ensuremath{\sim}60\text{ }\text{K}$ but the magnetic order only becomes established at 31 K… CONTINUE READING
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