{"title":"Features of the formation of baro- and piezocaloric effects in ferroelastics and ferroelectrics","authors":"I.N. Flerov , M.V. Gorev , E.V. Bogdanov , V.S. Bondarev , E.A. Mikhaleva","doi":"10.1016/j.solidstatesciences.2024.107799","DOIUrl":null,"url":null,"abstract":"<div><div>The analysis of baro- and piezo-caloric effects in ferroelectrics and ferroelastics containing tetrahedral and octahedral ion groups in the structure is carried out. The role of the degree of structural disorder in the formation of both effects is discussed. The features of the caloric response at phase transitions of different proximity to the tricritical point are revealed. The strong piezocaloric anisotropy of the studied materials is a convenient tool for extending the operating temperature range of the cooling cycle. An important advantage of ferroelastics and ferroelectrics undergoing transformations of the first order is the combination in one material of low thermal hysteresis and high sensitivity to hydrostatic and/or uniaxial pressure.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107799"},"PeriodicalIF":3.4000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid State Sciences","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1293255824003649","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
The analysis of baro- and piezo-caloric effects in ferroelectrics and ferroelastics containing tetrahedral and octahedral ion groups in the structure is carried out. The role of the degree of structural disorder in the formation of both effects is discussed. The features of the caloric response at phase transitions of different proximity to the tricritical point are revealed. The strong piezocaloric anisotropy of the studied materials is a convenient tool for extending the operating temperature range of the cooling cycle. An important advantage of ferroelastics and ferroelectrics undergoing transformations of the first order is the combination in one material of low thermal hysteresis and high sensitivity to hydrostatic and/or uniaxial pressure.
期刊介绍:
Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments.
Key topics for stand-alone papers and special issues:
-Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials
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