Field-induced spin-state transition in the perovskite cobalt oxide Sr 1-xYxCoO3-δ

S. Kimura, Y. Maeda, T. Kashiwagi, H. Yamaguchi, M. Hagiwara, S. Yoshida, I. Terasaki, K. Kindo

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High field magnetization and high-frequency electron spin resonance measurements on the perovskite Co oxide Sr1-x Yx CoO3-δ (x=0.22 and 0.25) have been performed in magnetic fields up to 53 T. We have observed the spin-state transition, induced by the external magnetic fields, for the sample with x=0.25. A distinctive feature of this field-induced spin-state transition is that it is assisted by an internal field, originating from ferromagnetic exchange interaction between Co3+ ions.

Original languageEnglish
Article number180403
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number18
Publication statusPublished - 2008 Nov 11


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