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dc.contributor.authorVandrangi, Suresh K.en_US
dc.contributor.authorYang, Jan-Chien_US
dc.contributor.authorZhu, Yuan-Minen_US
dc.contributor.authorChin, Yi-Yingen_US
dc.contributor.authorLin, Hong-Jien_US
dc.contributor.authorChen, Chien-Teen_US
dc.contributor.authorZhan, Qianen_US
dc.contributor.authorHe, Qingen_US
dc.contributor.authorChen, Yi-Chunen_US
dc.contributor.authorChu, Ying-Haoen_US
dc.date.accessioned2016-03-28T00:04:19Z-
dc.date.available2016-03-28T00:04:19Z-
dc.date.issued2015-12-09en_US
dc.identifier.issn1944-8244en_US
dc.identifier.urihttp://dx.doi.org/10.1021/acsami.5b07585en_US
dc.identifier.urihttp://hdl.handle.net/11536/129539-
dc.description.abstractMagnetic refrigeration, resulting from the magneto caloric effect of a material around the magnetic phase-transition temperature, is a topic of great interest as it is considered to be an alternate energy solution to conventional vapor-compression refrigeration. The viability of a magnetic refrigeration system for magnetic cooling can be tested by exploiting materials in various forms, from bulk to nanostrucutres. In this study, magnetocaloric properties of self-assembled Mn3O4-La0.7Sr0.3MnO3 nanocomposites, with varying doping concentrations of Mn3O4 in the form of nanocrystals embedded in the La0.7Sr0.3MnO3 matrix, are investigated. The temperatures corresponding to the paramagnetic-to-ferromagnetic transitions are higher, and the values of change in magnetic entropy under a magnetic field of 2 T show an enhancement (highest being similar to 130%) for the nanocomposites with low doping concentrations of Mn3O4, compared to that of pure La0.7Sr0.3MnO3 thin films. Relative cooling power remain close to those of La0.7Sr0.3MnO3. The enhanced magnetic phase-transition temperature and magnetocaloric effect are interpreted and evidenced in the framework of interfacial coupling between Mn3O4 and La0.7Sr0.3MnO3. This work demonstrates the potentiality of self-assembled nanostructures for magnetic cooling near room temperature under low magnetic fields.en_US
dc.language.isoen_USen_US
dc.subjectnanocompositesen_US
dc.subjectthin filmsen_US
dc.subjectmagnetocaloricsen_US
dc.subjectcomplex oxidesen_US
dc.subjectmanganitesen_US
dc.titleEnhanced Magnetocaloric Effect Driven by Interfacial Magnetic Coupling in Self-Assembled Mn3O4-La0.7Sr0.3MnO3 Nanocompositesen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/acsami.5b07585en_US
dc.identifier.journalACS APPLIED MATERIALS & INTERFACESen_US
dc.citation.issue48en_US
dc.citation.spage26504en_US
dc.citation.epage26511en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000366339100021en_US
dc.citation.woscount0en_US
Appears in Collections:Articles