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

Abstract

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.

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

References in corpus (3)

• Spontaneous rearrangement of the checkerboard charge order to stripe order in La1.5Sr0.5NiO4
• Spin-entropy driven melting of the charge order in La1.5Sr0.5CoO4
• Dimensional cross-over and charge order in half-doped Manganites and Cobaltites

Cited by in corpus (4)

• Stacked Charge Stripes in Quasi-Two_Dimensional Trilayer Nickelate La4Ni3O8
• Magnetic order and dynamics of the charge-ordered antiferromagnet La1.5Sr0.5CoO4
• Direct evidence for charge stripes in a layered cobalt oxide
• Stripeless incommensurate magnetism in a doped strongly correlated oxide