Valence state of Ru at the Mn sites in Pr0.5Sr 0.5MnO3

B. H. Kim; J. S. Kim; D. C. Kim; Y. W. Park; A. Maignan; B. Raveau

doi:10.1142/s0217979203021733

Valence state of Ru at the Mn sites in Pr0.5Sr 0.5MnO3

B. H. Kim
, J. S. Kim
, D. C. Kim
, Y. W. Park
, A. Maignan
, B. Raveau

Research output: Contribution to journal › Conference article

1 Scopus citations

Abstract

Valence state of the doped Ru at the Mn sites in Pr_0.5Sr _0.5MnO₃ has been studied using Ru K-edge X-ray absorption near-edge structure (XANES) spectroscopy. In comparison with XANES of reference ruthenates, it is found that the Mn-site doped Ru is dominantly in tetravalent state. This result suggests that the change of charge carrier density by Ru doping is not sufficient to understand drastic enhancement of ferromagnetism observed in the transport properties of Ru-doped Pr_0.5Sr _0.5MnO₃. The prime role of Ru in Mn^3+-O-Mn ⁴⁺ networks is discussed in terms of the valency effect and the magnetic interactions between doped Ru and Mn ions.

Original language	English
Pages (from-to)	3745-3748
Number of pages	4
Journal	International Journal of Modern Physics B
Volume	17
Issue number	18-20 II
DOIs	https://doi.org/10.1142/s0217979203021733
State	Published - Aug 10 2003
Externally published	Yes

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@article{cf55b155b8354bd19ce0c86e9ca64103,

title = "Valence state of Ru at the Mn sites in Pr0.5Sr 0.5MnO3",

abstract = "Valence state of the doped Ru at the Mn sites in Pr0.5Sr 0.5MnO3 has been studied using Ru K-edge X-ray absorption near-edge structure (XANES) spectroscopy. In comparison with XANES of reference ruthenates, it is found that the Mn-site doped Ru is dominantly in tetravalent state. This result suggests that the change of charge carrier density by Ru doping is not sufficient to understand drastic enhancement of ferromagnetism observed in the transport properties of Ru-doped Pr0.5Sr 0.5MnO3. The prime role of Ru in Mn3+-O-Mn 4+ networks is discussed in terms of the valency effect and the magnetic interactions between doped Ru and Mn ions.",

author = "Kim, \{B. H.\} and Kim, \{J. S.\} and Kim, \{D. C.\} and Park, \{Y. W.\} and A. Maignan and B. Raveau",

year = "2003",

month = aug,

day = "10",

doi = "10.1142/s0217979203021733",

language = "English",

volume = "17",

pages = "3745--3748",

journal = "International Journal of Modern Physics B",

issn = "0217-9792",

publisher = "World Scientific",

number = "18-20 II",

}

TY - JOUR

T1 - Valence state of Ru at the Mn sites in Pr0.5Sr 0.5MnO3

AU - Kim, B. H.

AU - Kim, J. S.

AU - Kim, D. C.

AU - Park, Y. W.

AU - Maignan, A.

AU - Raveau, B.

PY - 2003/8/10

Y1 - 2003/8/10

N2 - Valence state of the doped Ru at the Mn sites in Pr0.5Sr 0.5MnO3 has been studied using Ru K-edge X-ray absorption near-edge structure (XANES) spectroscopy. In comparison with XANES of reference ruthenates, it is found that the Mn-site doped Ru is dominantly in tetravalent state. This result suggests that the change of charge carrier density by Ru doping is not sufficient to understand drastic enhancement of ferromagnetism observed in the transport properties of Ru-doped Pr0.5Sr 0.5MnO3. The prime role of Ru in Mn3+-O-Mn 4+ networks is discussed in terms of the valency effect and the magnetic interactions between doped Ru and Mn ions.

AB - Valence state of the doped Ru at the Mn sites in Pr0.5Sr 0.5MnO3 has been studied using Ru K-edge X-ray absorption near-edge structure (XANES) spectroscopy. In comparison with XANES of reference ruthenates, it is found that the Mn-site doped Ru is dominantly in tetravalent state. This result suggests that the change of charge carrier density by Ru doping is not sufficient to understand drastic enhancement of ferromagnetism observed in the transport properties of Ru-doped Pr0.5Sr 0.5MnO3. The prime role of Ru in Mn3+-O-Mn 4+ networks is discussed in terms of the valency effect and the magnetic interactions between doped Ru and Mn ions.

UR - https://www.scopus.com/pages/publications/0141679253

U2 - 10.1142/s0217979203021733

DO - 10.1142/s0217979203021733

M3 - Conference article

SN - 0217-9792

VL - 17

SP - 3745

EP - 3748

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

IS - 18-20 II

ER -

Valence state of Ru at the Mn sites in Pr0.5Sr 0.5MnO3

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