The relationship between ionic conductivity and structural characteristics of melt-grown KR 3F10 (R = Tb, Dy, Ho, Y) single crystals
| العنوان: | The relationship between ionic conductivity and structural characteristics of melt-grown KR 3F10 (R = Tb, Dy, Ho, Y) single crystals |
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| المؤلفون: | Denis N. Karimov, Irina I. Buchinskaya, Nikolay I. Sorokin |
| المصدر: | Zeitschrift für Kristallographie - Crystalline Materials. 237:429-434 |
| بيانات النشر: | Walter de Gruyter GmbH, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Inorganic Chemistry, General Materials Science, Condensed Matter Physics |
| الوصف: | The temperature dependences of the ionic electrical conductivity of fluorite-type (sp. gr. F m 3 ‾ m $Fm\overline{3}m$ , Z = 8) KDy3F10 and KHo3F10 single crystals grown by the Bridgman technique have been studied by impedance spectroscopy for the first time. The correlation between the conductometric and structural characteristics of KR 3F10 (R = Tb, Dy, Ho, Y) crystal family from the point of view of the observed size effect in the ionic conductivity is discussed. With decrease in the unit-cell volume V 1F per fluorine atom in a series of crystals with R = Tb, Dy, Ho and Y, the activation energy Eσ of ion transfer decreases from 1.57 to 1.16 eV respectively and the fluorine-ion conductivity value increases from 3.0 × 10−5 to 4.4 × 10−4 S cm at 773 K, i.e. the nature of the conductivity change is linearly antibatic. This phenomenon can be useful for developing approaches and search strategies for new ionic conductors. |
| تدمد: | 2196-7105 2194-4946 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::f873f4cee0b3023bedaf941813069407 https://doi.org/10.1515/zkri-2022-0032 |
| رقم الأكسشن: | edsair.doi...........f873f4cee0b3023bedaf941813069407 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21967105 21944946 |
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