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Dielectric and magnetic properties, NEXAFS spectroscopy of Co-doped of multicomponent bismuth niobate pyrochlore. / Rychkova, L.V. ; Sekushin, N.A.; Nekipelov, S.V.; Makeev, B.A.; Fedorova, A.V. ; Korolev, R.I. ; Zhuk, N.A.

In: Ceramics International, 06.11.2020.

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

Harvard

Rychkova, LV, Sekushin, NA, Nekipelov, SV, Makeev, BA, Fedorova, AV, Korolev, RI & Zhuk, NA 2020, 'Dielectric and magnetic properties, NEXAFS spectroscopy of Co-doped of multicomponent bismuth niobate pyrochlore', Ceramics International.

APA

Rychkova, L. V., Sekushin, N. A., Nekipelov, S. V., Makeev, B. A., Fedorova, A. V., Korolev, R. I., & Zhuk, N. A. (2020). Dielectric and magnetic properties, NEXAFS spectroscopy of Co-doped of multicomponent bismuth niobate pyrochlore. Ceramics International.

Vancouver

Rychkova LV, Sekushin NA, Nekipelov SV, Makeev BA, Fedorova AV, Korolev RI et al. Dielectric and magnetic properties, NEXAFS spectroscopy of Co-doped of multicomponent bismuth niobate pyrochlore. Ceramics International. 2020 Nov 6.

Author

Rychkova, L.V. ; Sekushin, N.A. ; Nekipelov, S.V. ; Makeev, B.A. ; Fedorova, A.V. ; Korolev, R.I. ; Zhuk, N.A. / Dielectric and magnetic properties, NEXAFS spectroscopy of Co-doped of multicomponent bismuth niobate pyrochlore. In: Ceramics International. 2020.

BibTeX

@article{19696562612045a9b1a0fe7a4b1a9dff,
title = "Dielectric and magnetic properties, NEXAFS spectroscopy of Co-doped of multicomponent bismuth niobate pyrochlore",
abstract = "Two series of Bi2Mg1-xCoxNb2O9 and Bi2MgNb2-2xCo2xO9-δ preparations with pyrochlore structure were synthesized using solid phase method. It was found that solid solutions are formed in Bi2MgNb2-2xCo2xO9-δ series, foreign phases of MgNb2O6 and Bi5Nb3O15 are fixed in Bi2Mg1-xCoxNb2O9 samples, no impurity cobalt-containing phases were detected. The method of magnetic susceptibility and NEXAFS-spectroscopy investigated the electronic state and character of exchange interactions of cobalt atoms in solid solutions with the pyrochlore structure. According to X-ray spectroscopy and magnetic susceptibility of cobalt atoms in solid solutions in a dominant amount are in the charge state of Co(II) in the form of monomers and exchange-bound clusters mainly with antiferromagnetic type of exchange. Ceramics Co-doping of multicomponent bismuth niobate pyrochlore has at room temperature a high dielectric permeability of 84 and small dielectric losses of 0.001. The energy of activation of conductivity is equal to 0.75–1.03 eV. This type of ceramics with excellent dielectric properties can potentially be used as multilayer ceramic capacitors.",
keywords = "magnetic susceptibility, Dielectric constant, Dielectric loss tangent, Bismuth magnesium niobate pyrochlore, Cobalt doping, NEXAFS",
author = "L.V. Rychkova and N.A. Sekushin and S.V. Nekipelov and B.A. Makeev and A.V. Fedorova and R.I. Korolev and N.A. Zhuk",
year = "2020",
month = nov,
day = "6",
language = "English",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Dielectric and magnetic properties, NEXAFS spectroscopy of Co-doped of multicomponent bismuth niobate pyrochlore

AU - Rychkova, L.V.

AU - Sekushin, N.A.

AU - Nekipelov, S.V.

AU - Makeev, B.A.

AU - Fedorova, A.V.

AU - Korolev, R.I.

AU - Zhuk, N.A.

PY - 2020/11/6

Y1 - 2020/11/6

N2 - Two series of Bi2Mg1-xCoxNb2O9 and Bi2MgNb2-2xCo2xO9-δ preparations with pyrochlore structure were synthesized using solid phase method. It was found that solid solutions are formed in Bi2MgNb2-2xCo2xO9-δ series, foreign phases of MgNb2O6 and Bi5Nb3O15 are fixed in Bi2Mg1-xCoxNb2O9 samples, no impurity cobalt-containing phases were detected. The method of magnetic susceptibility and NEXAFS-spectroscopy investigated the electronic state and character of exchange interactions of cobalt atoms in solid solutions with the pyrochlore structure. According to X-ray spectroscopy and magnetic susceptibility of cobalt atoms in solid solutions in a dominant amount are in the charge state of Co(II) in the form of monomers and exchange-bound clusters mainly with antiferromagnetic type of exchange. Ceramics Co-doping of multicomponent bismuth niobate pyrochlore has at room temperature a high dielectric permeability of 84 and small dielectric losses of 0.001. The energy of activation of conductivity is equal to 0.75–1.03 eV. This type of ceramics with excellent dielectric properties can potentially be used as multilayer ceramic capacitors.

AB - Two series of Bi2Mg1-xCoxNb2O9 and Bi2MgNb2-2xCo2xO9-δ preparations with pyrochlore structure were synthesized using solid phase method. It was found that solid solutions are formed in Bi2MgNb2-2xCo2xO9-δ series, foreign phases of MgNb2O6 and Bi5Nb3O15 are fixed in Bi2Mg1-xCoxNb2O9 samples, no impurity cobalt-containing phases were detected. The method of magnetic susceptibility and NEXAFS-spectroscopy investigated the electronic state and character of exchange interactions of cobalt atoms in solid solutions with the pyrochlore structure. According to X-ray spectroscopy and magnetic susceptibility of cobalt atoms in solid solutions in a dominant amount are in the charge state of Co(II) in the form of monomers and exchange-bound clusters mainly with antiferromagnetic type of exchange. Ceramics Co-doping of multicomponent bismuth niobate pyrochlore has at room temperature a high dielectric permeability of 84 and small dielectric losses of 0.001. The energy of activation of conductivity is equal to 0.75–1.03 eV. This type of ceramics with excellent dielectric properties can potentially be used as multilayer ceramic capacitors.

KW - magnetic susceptibility

KW - Dielectric constant

KW - Dielectric loss tangent

KW - Bismuth magnesium niobate pyrochlore

KW - Cobalt doping

KW - NEXAFS

UR - https://www.sciencedirect.com/science/article/pii/S0272884220333204#!

M3 - Article

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

ER -

ID: 70869891