资源描述：
《Electrocaloric Materials.pdf》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、MR41CH09-ScottARI27May201110:26ElectrocaloricMaterialsJ.F.ScottDepartmentofPhysics,CavendishLaboratory,CambridgeUniversity,CambridgeCB30HE,UnitedKingdom;email:jfs32@hermes.cam.ac.ukbyNanyangTechnologicalUniversityon10/14/11.Forpersonaluseonly.Annu.Rev.Mater.Res.2011.41:229-2
2、40.Downloadedfromwww.annualreviews.orgAnnu.Rev.Mater.Res.2011.41:229–40KeywordsFirstpublishedonlineasaReviewinAdvanceonferroelectrics,phasetransitions,entropy,adiabaticdepolarization,January12,2011cryogenicsTheAnnualReviewofMaterialsResearchisonlineatmatsci.annualreviews.org
3、AbstractThisarticle’sdoi:Electrocaloricmaterialsarereviewedthroughadiscussionofferroelectric10.1146/annurev-matsci-062910-100341crystalsusedtoachieverefrigerationviaadiabaticdepolarization.RelatedCopyrightc2011byAnnualReviews.thermodynamicsisbrieflysummarized,butemphasisison
4、experimentsandAllrightsreservedmaterials.1531-7331/11/0804-0229$20.00229MR41CH09-ScottARI27May201110:26INTRODUCTIONLikemanythingsincondensedmatterphysics,theelectrocaloriceffect(ECE)—thecoolingofaECE:electrocaloriccrystalbytheapplicationofanexternalelectricfield—hashadalongan
5、doftenmuddledhistory.effectForinstance,inthefieldofferroelectrics,coercivefieldssatisfythe1962Kay-DunnLaw(1),whichTGS:triglycineJanovec(2)actuallypublishedin1959andGlogar&Janovec(3)developedfurtherin1963.Landausulfate&Lifshitz(5)hadpublishedthe1946KittelLaw(4)fordomainwidthsad
6、ecadeearlier,in1935.TGSe:triglycineIn1959Levanyuk(7)publishedthe1960Ginzburgcriterion(6)fortherangeintemperatureofselenatecriticalfluctuations.Kogan(8)in1964[andBursian(9)in1968]publishedtheexpressionrelatingKDP:potassiumflexoelectricitytodielectricconstantinpiezoelectricsinex
7、actlythesameformasdidTagantsevdihydrogenphosphate(10)manyyearslater(1986)(withoutcitingKoganorBursian).Theelectrocaloriceffect,oftenEc:thecoercivefield;attributedtoGranicher(11)(1956)orHegenbarth(12)(1961),waswell-knownfromtheresultstheminimumofKobeko&Kurchatov(13)onRochelles
8、altin1930[amaterialsubsequentlyreexaminedinswitchingfieldforadetailbyWiseman
