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Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La5/3Sr1/3CoO4

Lancaster, T., Giblin, Sean ORCID:, Allodi, G., Bordignon, S., Mazzani, M., De Renzi, R., Freeman, P. G., Baker, P. J., Pratt, F. L., Babkevich, P., Blundell, S. J., Boothroyd, A. T., Moeller, J. S. and Prabhakaran, D. 2014. Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La5/3Sr1/3CoO4. Physical Review B Condensed Matter and Materials Physics 89 (2) , 020405(R). 10.1103/PhysRevB.89.020405

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We investigate the magnetic ordering and dynamics of the stripe phase of La 5/3 Sr 1/3 CoO 4 , a material shown to have an hourglass magnetic excitation spectrum. A combination of muon-spin relaxation, nuclear magnetic resonance, and magnetic susceptibility measurements strongly suggest that the physics is determined by a partially disordered configuration of charge and spin stripes whose frustrated magnetic degrees of freedom are dynamic at high temperature and which undergo an ordering transition around 35 K with coexisting dynamics that freeze out in a glassy manner as the temperature is further reduced.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Physics and Astronomy
Neuroscience and Mental Health Research Institute (NMHRI)
Subjects: Q Science > QC Physics
Publisher: American Physical Society
ISSN: 1098-0121
Last Modified: 28 Oct 2022 09:53

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