Magnetocaloric properties of (La1-xPrx)0.85K0.15MnO3 (x=0.0, 0.1, 0.3 and 0.5) perovskite manganites

Basit Öğe Kaydı
dc.authoridEkicibil, Ahmet/0000-0003-3071-0444
dc.authoridKILIC CETIN, selda/0000-0003-4112-4475
dc.authoridAkca, Gonul/0000-0001-7187-9516
dc.contributor.authorAkca, Gonul
dc.contributor.authorCetin, Selda Kılıç
dc.contributor.authorGunes, Mustafa
dc.contributor.authorEkicibil, Ahmet
dc.date.accessioned2025-01-06T17:43:32Z
dc.date.available2025-01-06T17:43:32Z
dc.date.issued2016
dc.description.abstractIn this study, we have investigated the effect of Pr on the structural, magnetic and magnetocaloric properties of La1-xPrx)(0.85)K0.15MnO3 (x=0.0, 0.1, 0.3 and 0.5) samples synthesized by sol-gel technique. The XRD patterns of samples for x=0.0 and 0.1 are indexed to rhombohedral structure with hexagonal setting (space group R (3) over barc) while the samples for x=0.3 and 0.5 crystallized in the orthorhombic structure with space group Pbnm. Magnetization measurements versus temperature in a magnetic field of 250 Oe indicate that all samples show a ferromagnetic to paramagnetic transition with increasing temperature. The Curie temperature, T-C, decreases with increasing Pr3+ concentration from 238 K for x=0.0-158 IC for x=0.5. We determined the magnetic entropy changes of the samples from M(H) isotherms that were measured around T-C. The values of maximum magnetic entropy change were found to be 4.63, 5.22, 2.80 and 2.30 J kg(-1) K-1 for x=0.0, 0.1, 0.3 and 0.5 for a field change of 2 T, respectively. For LPKM1 sample, we have also calculated the value of adiabatic temperature change as 3.11 K from the heat capacity and isothermal magnetization measurements under magnetic field of 2 T.
dc.description.sponsorshipResearch Fund of cukurova University, Adana, Turkey [FEF2010D12, FBA-2015-4464, FBA-2015-5028]
dc.description.sponsorshipThis work is supported by the Research Fund of cukurova University, Adana, Turkey, under grant contracts no. FEF2010D12, FBA-2015-4464 and FBA-2015-5028. The authors thank also Dr. Deniz Takci for his technical assistance in XRD measurements and Dr. Mark Laver for language assistance.
dc.identifier.doi10.1016/j.ceramint.2016.09.070
dc.identifier.endpage19104
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue16
dc.identifier.scopus2-s2.0-84994530468
dc.identifier.scopusqualityQ1
dc.identifier.startpage19097
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2016.09.070
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2696
dc.identifier.volume42
dc.identifier.wosWOS:000388542700151
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofCeramics International
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectMagnetocaloric effect
dc.subjectMagnetic entropy changes
dc.subjectManganites
dc.subjectCurie temperature
dc.titleMagnetocaloric properties of (La1-xPrx)0.85K0.15MnO3 (x=0.0, 0.1, 0.3 and 0.5) perovskite manganites
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu