Structural and electromagnetic characteristics of perovskites in La1–c–xSrc+xMn1–xMe4+xO3 systems (Me=Ge, Ti)
Experimental data are shown for the influence of substituting quadrivalent ions on the concentration phase transitions “rhombohedral-orthorhombic structure” and “semiconductor-metal” in ceramic manganites of specifically designed system La3+1–c–xSr2+c+xMn3+1–c–xMn4+cMe4+xO3 (c=0.15, 0.17, 0.19; 0.02...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2013-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20134015004 |
| _version_ | 1818655800671862784 |
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| author | Karpasyuk V. Estemirova S. Epifanova I. Datskaya Z. Badelin A. Smirnov A. |
| author_facet | Karpasyuk V. Estemirova S. Epifanova I. Datskaya Z. Badelin A. Smirnov A. |
| author_sort | Karpasyuk V. |
| collection | DOAJ |
| description | Experimental data are shown for the influence of substituting quadrivalent ions on the concentration phase transitions “rhombohedral-orthorhombic structure” and “semiconductor-metal” in ceramic manganites of specifically designed system La3+1–c–xSr2+c+xMn3+1–c–xMn4+cMe4+xO3 (c=0.15, 0.17, 0.19; 0.025≤x≤0.125). Regularities in the concentration dependences of unit cell volume, saturation magnetization, Curie point, and resistivity were established. Ge-substituted manganites had essentially higher values of magnetization and Curie temperature than analogous compositions with Ti. The approach to the interpretation of experimental results is discussed in terms of electron configurations and ionic radii of substituents taking into account oxygen nonstoichiometry and cation vacancies. |
| first_indexed | 2024-12-17T03:15:27Z |
| format | Article |
| id | doaj.art-16b115a448444b18a6244717d1fd1a7c |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-17T03:15:27Z |
| publishDate | 2013-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-16b115a448444b18a6244717d1fd1a7c2022-12-21T22:05:41ZengEDP SciencesEPJ Web of Conferences2100-014X2013-01-01401500410.1051/epjconf/20134015004Structural and electromagnetic characteristics of perovskites in La1–c–xSrc+xMn1–xMe4+xO3 systems (Me=Ge, Ti)Karpasyuk V.Estemirova S.Epifanova I.Datskaya Z.Badelin A.Smirnov A.Experimental data are shown for the influence of substituting quadrivalent ions on the concentration phase transitions “rhombohedral-orthorhombic structure” and “semiconductor-metal” in ceramic manganites of specifically designed system La3+1–c–xSr2+c+xMn3+1–c–xMn4+cMe4+xO3 (c=0.15, 0.17, 0.19; 0.025≤x≤0.125). Regularities in the concentration dependences of unit cell volume, saturation magnetization, Curie point, and resistivity were established. Ge-substituted manganites had essentially higher values of magnetization and Curie temperature than analogous compositions with Ti. The approach to the interpretation of experimental results is discussed in terms of electron configurations and ionic radii of substituents taking into account oxygen nonstoichiometry and cation vacancies.http://dx.doi.org/10.1051/epjconf/20134015004 |
| spellingShingle | Karpasyuk V. Estemirova S. Epifanova I. Datskaya Z. Badelin A. Smirnov A. Structural and electromagnetic characteristics of perovskites in La1–c–xSrc+xMn1–xMe4+xO3 systems (Me=Ge, Ti) EPJ Web of Conferences |
| title | Structural and electromagnetic characteristics of perovskites in La1–c–xSrc+xMn1–xMe4+xO3 systems (Me=Ge, Ti) |
| title_full | Structural and electromagnetic characteristics of perovskites in La1–c–xSrc+xMn1–xMe4+xO3 systems (Me=Ge, Ti) |
| title_fullStr | Structural and electromagnetic characteristics of perovskites in La1–c–xSrc+xMn1–xMe4+xO3 systems (Me=Ge, Ti) |
| title_full_unstemmed | Structural and electromagnetic characteristics of perovskites in La1–c–xSrc+xMn1–xMe4+xO3 systems (Me=Ge, Ti) |
| title_short | Structural and electromagnetic characteristics of perovskites in La1–c–xSrc+xMn1–xMe4+xO3 systems (Me=Ge, Ti) |
| title_sort | structural and electromagnetic characteristics of perovskites in la1 c xsrc xmn1 xme4 xo3 systems me ge ti |
| url | http://dx.doi.org/10.1051/epjconf/20134015004 |
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