Universal features of charge and spin order in a half-doped layered perovskite

Details Universal features of charge and spin order in a half-doped layered perovskite Universal features of charge and spin order in a half-doped layered perovskite

2003-10-28

arxiv.org/abs/cond-mat/0310662v2

J. Appl. Phys. 95, 7369 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

Proof-corrected version, to appear in J. Appl. Phys. 95, # 11, 18141MMM (2004)

Scientific paper

10.1063/1.1664400

We have investigated the peculiar structure of charge and spin ordering in the half-doped layered perovskite oxide La$_{1.5}$Sr$_{0.5}$CoO$_4$ by elastic neutron scattering. Two samples with different preparation histories were studied. We find that the generic features of the ordered states, such as their short-range, glassy nature and the spin incommensurability, are sample-independent. At the same time, some subtle features of the ordered phases, such as the correlation lengths, differ.

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