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Magnetocaloric effect and temperature coefficient of resistance of La 0.85 Ag 0.15 MnO 3 epitaxial thin films obtained by polymer-assisted deposition

Cobas Acosta, R.; Munoz Perez, Susset; Cadogan, J.M.; Hutchinson, W.D.; Ridgway, Mark C

Description

We report the magnetocaloric effects and temperature coefficient of resistance (TCR) of La0.85Ag0.15MnO3 epitaxial thin films grown on single-crystal substrates of LaAlO3 (001) and SrTiO3 (001) using the chemical solution approach of polymer-assisted deposition (PAD). The film thicknesses are in the range 30-35 nm. Magnetocaloric effects, with entropy changes of -2.14 J/kg.K, in the case of the LaAlO3 substrate and -2.72 J/kg.K for the SrTiO3 substrate, (corresponding to a magnetic field...[Show more]

dc.contributor.authorCobas Acosta, R.
dc.contributor.authorMunoz Perez, Susset
dc.contributor.authorCadogan, J.M.
dc.contributor.authorHutchinson, W.D.
dc.contributor.authorRidgway, Mark C
dc.date.accessioned2015-12-13T22:29:02Z
dc.identifier.issn2100-014X
dc.identifier.urihttp://hdl.handle.net/1885/74494
dc.description.abstractWe report the magnetocaloric effects and temperature coefficient of resistance (TCR) of La0.85Ag0.15MnO3 epitaxial thin films grown on single-crystal substrates of LaAlO3 (001) and SrTiO3 (001) using the chemical solution approach of polymer-assisted deposition (PAD). The film thicknesses are in the range 30-35 nm. Magnetocaloric effects, with entropy changes of -2.14 J/kg.K, in the case of the LaAlO3 substrate and -2.72 J/kg.K for the SrTiO3 substrate, (corresponding to a magnetic field variation of 2T) were obtained at room temperature. The refrigeration capacity at this field variation reached large values of 125 J/kg and 216 J/kg, indicating that these films prepared by PAD have the potential for microcooling applications. The temperature coefficient of resistance has been calculated from the resistivity measurements. A maximum TCR value of 3.01 % K-1 was obtained at 309 K, which shows that these films also have potential as uncooled thermometers for bolometric applications.
dc.publisherE D P Sciences
dc.sourceEPJ Web of Conferences
dc.titleMagnetocaloric effect and temperature coefficient of resistance of La 0.85 Ag 0.15 MnO 3 epitaxial thin films obtained by polymer-assisted deposition
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume75
dc.date.issued2014
local.identifier.absfor020406 - Surfaces and Structural Properties of Condensed Matter
local.identifier.ariespublicationU3488905xPUB4150
local.type.statusPublished Version
local.contributor.affiliationCobas Acosta, R., The University of New South Wales
local.contributor.affiliationMunoz Perez, Susset, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationCadogan, J.M., The University of New South Wales
local.contributor.affiliationHutchinson, W.D., University of New South Wales
local.contributor.affiliationRidgway, Mark C, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage04006
local.identifier.doi10.1051/epjconf/20147504006
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2015-12-11T08:45:25Z
local.identifier.scopusID2-s2.0-84904611356
CollectionsANU Research Publications

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