熔融生长KR3F10（R=Tb，Dy，Ho，Y）单晶的离子电导率与结构特征的关系

IF 0.9 4区材料科学 Q3 CRYSTALLOGRAPHY

Zeitschrift Fur Kristallographie-Crystalline Materials Pub Date : 2022-08-26 DOI:10.1515/zkri-2022-0032

D. Karimov, I. I. Buchinskaya, N. Sorokin

{"title":"熔融生长KR3F10（R=Tb，Dy，Ho，Y）单晶的离子电导率与结构特征的关系","authors":"D. Karimov, I. I. Buchinskaya, N. Sorokin","doi":"10.1515/zkri-2022-0032","DOIUrl":null,"url":null,"abstract":"Abstract 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 KR3F10 (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 V1F 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.","PeriodicalId":48676,"journal":{"name":"Zeitschrift Fur Kristallographie-Crystalline Materials","volume":"237 1","pages":"429 - 434"},"PeriodicalIF":0.9000,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"The relationship between ionic conductivity and structural characteristics of melt-grown KR3F10 (R = Tb, Dy, Ho, Y) single crystals\",\"authors\":\"D. Karimov, I. I. Buchinskaya, N. Sorokin\",\"doi\":\"10.1515/zkri-2022-0032\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract 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 KR3F10 (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 V1F 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.\",\"PeriodicalId\":48676,\"journal\":{\"name\":\"Zeitschrift Fur Kristallographie-Crystalline Materials\",\"volume\":\"237 1\",\"pages\":\"429 - 434\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2022-08-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Zeitschrift Fur Kristallographie-Crystalline Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1515/zkri-2022-0032\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CRYSTALLOGRAPHY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift Fur Kristallographie-Crystalline Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1515/zkri-2022-0032","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}

引用次数: 2

摘要

摘要萤石型（sp.gr.Fm3‾m$Fm\overline）离子电导率的温度依赖性{3}m首次用阻抗谱法研究了用Bridgman技术生长的KDy3F10和KHo3F10单晶。从离子电导率中观察到的尺寸效应的角度，讨论了KR3F10（R=Tb，Dy，Ho，Y）晶体族的电导率与结构特征之间的相关性。在一系列R=Tb、Dy、Ho和Y的晶体中，随着每个氟原子的晶胞体积V1F的减小，离子转移的活化能Eσ分别从1.57 eV降低到1.16 eV，氟离子电导率值在773K时从3.0×10−5增加到4.4×10−4 S cm，即电导率变化的性质是线性反极化的。这一现象有助于开发新的离子导体的方法和搜索策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

The relationship between ionic conductivity and structural characteristics of melt-grown KR3F10 (R = Tb, Dy, Ho, Y) single crystals

Abstract 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 KR3F10 (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 V1F 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.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Zeitschrift Fur Kristallographie-Crystalline Materials CRYSTALLOGRAPHY-

CiteScore

2.00

自引率

16.70%

发文量

期刊介绍： Zeitschrift für Kristallographie – Crystalline Materials was founded in 1877 by Paul von Groth and is today one of the world’s oldest scientific journals. It offers a place for researchers to present results of their theoretical experimental crystallographic studies. The journal presents significant results on structures and on properties of organic/inorganic substances with crystalline character, periodically ordered, modulated or quasicrystalline on static and dynamic phenomena applying the various methods of diffraction, spectroscopy and microscopy.