Soft x-ray absorption spectroscopy study of Mo-rich SrMn 1-xMoxO3 (x≥0.5)

Hwang, J. H.; Kim, D. H.; Kang, J. -S.; Kolesnik, S.; Chmaissem, O.; Mais, J.; Dabrowski, B.; Baik, J.; Shin, H. J.; Lee, Jieun; Kim, Bongjae; Min, B. I.

doi:10.1103/PhysRevB.83.073103

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Soft x-ray absorption spectroscopy study of Mo-rich SrMn 1-xMoxO3 (x≥0.5) : Soft x-ray absorption spectroscopy study of Mo-rich SrMn1-xMoxO3 (x ≥ 0.5)

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Authors: Hwang, J. H.; Kim, D. H.; Kang, J. -S.; Kolesnik, S.; Chmaissem, O.; Mais, J.; Dabrowski, B.; Baik, J.; Shin, H. J.; Lee, Jieun; Kim, Bongjae; Min, B. I.

Issue Date: 2011-02

Publisher: AMER PHYSICAL SOC

Citation: PHYSICAL REVIEW B, Vol.83 No.7

Abstract: Electronic structures of perovskite oxides of SrMn1-xMoxO3 in the Mo-rich regime (x >= 0.5) have been investigated by employing soft x-ray absorption spectroscopy (XAS). Mn 2p XAS spectra of SrMn1-xMoxO3 indicate that the valence states of Mn ions are divalent and that they remain nearly unchanged for x >= 0.5. On the other hand, the Mo 3p XAS spectra of SrMn1-xMoxO3 show some changes, suggesting that the valence states of Mo ions decrease with increasing x for x >= 0.5. These conclusions are supported by the unoccupied Mn 3d and Mo 4d states, observed experimentally in the O 1s XAS spectra of SrMn1-xMoxO3.