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

Article

关键词: HIGH-TEMPERATURE SUPERCONDUCTOR;    SPIN DYNAMICS;    EXCITATIONS;    TRANSITION;    SPECTRUM;    MUONS;    ORDER;   

DOI  :  10.1103/PhysRevB.89.020405

来源: SCIE

【 摘 要 】

We investigate the magnetic ordering and dynamics of the stripe phase of La5/3Sr1/3CoO4, 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.

【 授权许可】

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