Anomalous anisotropic ac susceptibility response of crystals: Relevance to phase separation

Vassil Skumryev, J. Nogués, J. Muñoz, B. Martínez, R. Senis, J. Fontcuberta

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Abstract

The dynamic response of (Formula presented) crystals (Formula presented) and 0.125) has been studied by ac susceptibility. A strongly frequency- and field-dependent susceptibility anomaly was observed along a and b axes in the intermediate temperature range between the onset of magnetic order and the orthorhombic-“pseudocubic,” (Formula presented) structural transition. No anomaly was present if the ac field was applied along the c axis. This unusual response, reminiscent of cluster-glass behavior, is attributed to a strongly anisotropic, magnetically nonuniform state. This observation would constitute a clear indication of phase separation in low-doped manganites. © 2000 The American Physical Society.
Original languageEnglish
Pages (from-to)3879-3882
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume62
DOIs
Publication statusPublished - 1 Jan 2000

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    Skumryev, V., Nogués, J., Muñoz, J., Martínez, B., Senis, R., & Fontcuberta, J. (2000). Anomalous anisotropic ac susceptibility response of crystals: Relevance to phase separation. Physical Review B - Condensed Matter and Materials Physics, 62, 3879-3882. https://doi.org/10.1103/PhysRevB.62.3879