- PII
- 10.31857/S0044457X23600536-1
- DOI
- 10.31857/S0044457X23600536
- Publication type
- Status
- Published
- Authors
- Volume/ Edition
- Volume 68 / Issue number 10
- Pages
- 1398-1404
- Abstract
- Perovskite-type Ca0.5 – xSr0.5LuxMnO3 – δ (x = 0.05, 0.10, 0.15, and 0.20) manganites have been prepared in air using a citrate–nitrate process for preparing precursors. At room temperature, the x = 0.05, 0.10, and 0.15 samples have an orthorhombic structure (space group Pbnm); when x = 0.2, a tetragonal structure (space group I4/mcm) is formed. The increase in unit cell volume in response to rising lutetium concentration in the samples is due to an increase in Mn3+ concentration necessary to ensure n-type electrical conductivity σ. The temperature-activated electrical conductivity is consistent with the adiabatic transport mechanism of small polarons. The increase in magnitude of the Seebeck coefficient S in response to rising temperature is due to the decrease in the concentration of Mn3+ ions via their disproportionation to Mn2+ and Mn4+ ions. The S(T) and σ(T) temperature dependences under the condition where δ ⁓ 0 have been used to calculate the equilibrium constants of the disproportionation reaction, charge carrier concentrations and mobilities.
- Keywords
- манганиты перовскит электропроводность коэффициент Зеебека
- Date of publication
- 17.09.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 13
References
- 1. Wang Y., Sui Y., Wang X., Su W. // J. Phys. D: Appl. Phys. 2009. V. 42. P. 055010. https://doi.org/10.1088/0022-3727/42/5/055010
- 2. Bhaskar A., Liu C.-J., Yuan J.J. // J. Electron. Mater. 2012. V. 41. P. 2338. https://doi.org/10.1007/s11664-012-2159-6
- 3. Löhnert R., Töpfer J. // J. Solid State Chem. 2022. V. 315. P. 123437. https://doi.org/10.1016/j.jssc.2022.123437
- 4. Madre M.A., Amaveda H., Dura O.J. et al. // J. Alloys Compd. 2023. V. 954. P. 170201. https://doi.org/10.1016/j.jallcom.2023.170201
- 5. Ohtaki M. // J. Ceram. Soc. Jpn. 2011. V. 119. P. 770. https://doi.org/10.2109/jcersj2.119.770
- 6. Kennedy B.J., Saines P.J., Zhou Q. et al. // J. Solid State Chem. 2008. V. 181. P. 2639. https://doi.org/10.1016/j.jssc.2008.06.022
- 7. Федорова О.М., Ведмидь Л.Б., Балакирева В.Б. и др. // Неорган. материалы. 2021. Т. 57. № 4. С. 412. Fedorova O.M., Vedmid’ L.B., Balakireva V.B. et al. // Inorg. Mater. 2021. V. 57. P. 392. https://doi.org/10.31857/S0002337X21040047
- 8. Konstantinova E.I., Leonidov I.A., Markov A.A. et al. // J. Mater. Chem. A. 2020. V. 8. P. 16497. https://doi.org/10.1039/D0TA03731A
- 9. Konstantinova E.I., Leonidova O.N., Chukin A.V., Leonidov I.A. // Mater. Lett. 2021. V. 283. P. 128803. https://doi.org/10.1016/j.matlet.2020.128803
- 10. Mizusaki J., Mori N., Takai H. et al. // Solid State Ionics. 2000. V. 129. P. 163. https://doi.org/10.1016/S0167-2738 (99)00323-9
- 11. Evdou A., Georgitsis T., Matsouka C. et al. // Nanomaterials. 2022. V. 12. P. 3461. https://doi.org/10.3390/nano12193461
- 12. Antipinskaya E.A., Politov B.V., Petrova S.A. et al. // J. Energy Storage. 2022. V. 53. P. 105175. https://doi.org/10.1016/j.est.2022.105175
- 13. Kraus W., Nolze G. // Powder Cell for Windows – Version 2.4 – Structure Visualisation/Manipulation. Powder Pattern Calculation and Profile Fitting Federal Institute for Materials Research and Testing. 2000. Berlin, Germany.
- 14. Cusack N., Kendall P. // Proc. Phys. Soc. 1958. V. 72. P. 898. https://doi.org/10.1088/0370-1328/72/5/429
- 15. Chimaissem O., Dabrowski B., Kolesnik S. et al. // Phys. Rev. B. 2001. V. 64. P. 134412. https://doi.org/10.1103/PhysRevB.64.134412
- 16. Shannon R.D. // Acta Crystallogr., Sect. A. 1976. V. 32. P. 751. https://doi.org/10.1107/S0567739476001551
- 17. Goldyreva E.I., Leonidov I.A., Patrakeev M.V. et al. // J. Alloys Compd. 2015. V. 638. P. 44. https://doi.org/10.1016/j.jallcom.2015.03.048
- 18. Austin I.G., Mott N.F. // Adv. Phys. 2001. V. 50. P. 757. https://doi.org/10.1080/00018730110103249
- 19. Kuo J.H., Anderson H.U., Sparlin D.M. // J. Solid State Chem. 1989. V. 83. P. 52. https://doi.org/10.1016/0022-4596 (89)90053-4
- 20. Moskvin A.S. // J. Phys. Condens. Matter. 2013. V. 25. P. 085601. https://doi.org/10.1088/0953-8984/25/8/085601
- 21. Moskvin A.S. // Phys. Rev. B. 2009. V. 79. P. 115102. https://doi.org/10.1103/PhysRevB.79.115102
- 22. Loktev V.M., Pogorelov Y.G. // Low Temp. Phys. 2000. V. 26. P. 171. https://doi.org/10.1063/1.593890
- 23. Леонидов И.А., Константинова Е.И., Патракеев М.В. и др. // Неорган. материалы. 2017. Т. 53. № 6. С. 594. Leonidov I.A., Konstantinova E.I., Patrakeev M.V. et al. // Inorg. Mater. 2017. V. 53. P. 583. https://doi.org/10.1134/S0020168517060097
- 24. Leonidov I.A., Konstantinova E.I., Patrakeev M.V. et al. // J. Solid State Electrochem. 2017. V. 21. P. 2099. https://doi.org/10.1007/s10008-01-3571-x
- 25. Konstantinova E.I., Ryzhkov M.A. Leonidova O.N. et al. // J. Solid State Electrochem. 2023. https://doi.org/10.1007/s10008-023-05386-0
