XAFS and neutron diffraction study of La1-xSr xCo1-yNbyO3

V. V. Efimov; E. Efimova; D. Karpinsky; D. I. Kochubey; V. Kriventsov; A. Kuzmin; S. Molodtsov; V. Sikolenko; J. Purans; S. Tiutiunnikov; I. O. Troyanchuk; A. N. Shmakov; D. Vyalikh

doi:10.1016/j.nima.2007.01.061

XAFS and neutron diffraction study of La_1-xSr _xCo_1-yNb_yO₃

V. V. Efimov^*
, E. Efimova
, D. Karpinsky
, D. I. Kochubey
, V. Kriventsov
, A. Kuzmin
, S. Molodtsov
, V. Sikolenko
, J. Purans
, S. Tiutiunnikov
, I. O. Troyanchuk
, A. N. Shmakov
, D. Vyalikh

^*Corresponding author for this work

EXAFS Spectroscopy Laboratory, Institute of Solid State Physics

Joint Institute for Nuclear Research
Belarus Academy of Sciences
Boreskov Institute of Catalysis SB RAS
Leibniz Institute for Solid State and Materials Research Dresden
Helmholtz Centre Berlin for Materials and Energy
Dipartimento di Fisica

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The effect of hole doping on the crystal and electronic structure of La_1-xSr_xCo_1-yNb _yO₃ (y=0.0-0.25) at the x=0.0; 0.2; 0.5 has been studied by neutron diffraction and X-ray absorption spectroscopy at the Co K and L_2,3-edges. The preliminary analysis of the Co K and L_2,3-edges X-ray absorption near edge structure (XANES) in La_1-xSr_xCo_1-yNb _yO₃ series suggests that upon niobium doping, an increase of the intermediate Co³⁺ spin state and a decrease of low spin Co⁴⁺ states contributions occur. The possible explanation of the observed changes of crystal and electronic structure in these cobaltites is discussed.

Original language	English
Pages (from-to)	176-179
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	575
Issue number	1-2
DOIs	https://doi.org/10.1016/j.nima.2007.01.061
Publication status	Published - 21 May 2007

Keywords

Cobaltites
X-ray and neutron diffraction
XAFS

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10.1016/j.nima.2007.01.061

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Efimov, V. V., Efimova, E., Karpinsky, D., Kochubey, D. I., Kriventsov, V., Kuzmin, A., Molodtsov, S., Sikolenko, V., Purans, J., Tiutiunnikov, S., Troyanchuk, I. O., Shmakov, A. N., & Vyalikh, D. (2007). XAFS and neutron diffraction study of La_1-xSr _xCo_1-yNb_yO₃. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 575(1-2), 176-179. https://doi.org/10.1016/j.nima.2007.01.061

@article{b266bf47cf0b4bdb8b0d963e94d8081e,

title = "XAFS and neutron diffraction study of La1-xSr xCo1-yNbyO3",

abstract = "The effect of hole doping on the crystal and electronic structure of La1-xSrxCo1-yNb yO3 (y=0.0-0.25) at the x=0.0; 0.2; 0.5 has been studied by neutron diffraction and X-ray absorption spectroscopy at the Co K and L2,3-edges. The preliminary analysis of the Co K and L2,3-edges X-ray absorption near edge structure (XANES) in La1-xSrxCo1-yNb yO3 series suggests that upon niobium doping, an increase of the intermediate Co3+ spin state and a decrease of low spin Co4+ states contributions occur. The possible explanation of the observed changes of crystal and electronic structure in these cobaltites is discussed.",

keywords = "Cobaltites, X-ray and neutron diffraction, XAFS",

author = "Efimov, \{V. V.\} and E. Efimova and D. Karpinsky and Kochubey, \{D. I.\} and V. Kriventsov and A. Kuzmin and S. Molodtsov and V. Sikolenko and J. Purans and S. Tiutiunnikov and Troyanchuk, \{I. O.\} and Shmakov, \{A. N.\} and D. Vyalikh",

year = "2007",

month = may,

day = "21",

doi = "10.1016/j.nima.2007.01.061",

language = "English",

volume = "575",

pages = "176--179",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier B.V.",

number = "1-2",

}

Efimov, VV, Efimova, E, Karpinsky, D, Kochubey, DI, Kriventsov, V, Kuzmin, A, Molodtsov, S, Sikolenko, V, Purans, J, Tiutiunnikov, S, Troyanchuk, IO, Shmakov, AN & Vyalikh, D 2007, 'XAFS and neutron diffraction study of La_1-xSr _xCo_1-yNb_yO₃', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 575, no. 1-2, pp. 176-179. https://doi.org/10.1016/j.nima.2007.01.061

TY - JOUR

T1 - XAFS and neutron diffraction study of La1-xSr xCo1-yNbyO3

AU - Efimov, V. V.

AU - Efimova, E.

AU - Karpinsky, D.

AU - Kochubey, D. I.

AU - Kriventsov, V.

AU - Kuzmin, A.

AU - Molodtsov, S.

AU - Sikolenko, V.

AU - Purans, J.

AU - Tiutiunnikov, S.

AU - Troyanchuk, I. O.

AU - Shmakov, A. N.

AU - Vyalikh, D.

PY - 2007/5/21

Y1 - 2007/5/21

N2 - The effect of hole doping on the crystal and electronic structure of La1-xSrxCo1-yNb yO3 (y=0.0-0.25) at the x=0.0; 0.2; 0.5 has been studied by neutron diffraction and X-ray absorption spectroscopy at the Co K and L2,3-edges. The preliminary analysis of the Co K and L2,3-edges X-ray absorption near edge structure (XANES) in La1-xSrxCo1-yNb yO3 series suggests that upon niobium doping, an increase of the intermediate Co3+ spin state and a decrease of low spin Co4+ states contributions occur. The possible explanation of the observed changes of crystal and electronic structure in these cobaltites is discussed.

AB - The effect of hole doping on the crystal and electronic structure of La1-xSrxCo1-yNb yO3 (y=0.0-0.25) at the x=0.0; 0.2; 0.5 has been studied by neutron diffraction and X-ray absorption spectroscopy at the Co K and L2,3-edges. The preliminary analysis of the Co K and L2,3-edges X-ray absorption near edge structure (XANES) in La1-xSrxCo1-yNb yO3 series suggests that upon niobium doping, an increase of the intermediate Co3+ spin state and a decrease of low spin Co4+ states contributions occur. The possible explanation of the observed changes of crystal and electronic structure in these cobaltites is discussed.

KW - Cobaltites

KW - X-ray and neutron diffraction

KW - XAFS

UR - https://www.scopus.com/pages/publications/34247890006

U2 - 10.1016/j.nima.2007.01.061

DO - 10.1016/j.nima.2007.01.061

M3 - Article

AN - SCOPUS:34247890006

SN - 0168-9002

VL - 575

SP - 176

EP - 179

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1-2

ER -

XAFS and neutron diffraction study of La_1-xSr _xCo_1-yNb_yO₃

Abstract

Keywords

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