Magnetocaloric effect in (La1-xSmx)0.67Pb0.33MnO3 (0 ? x ? 0.3) manganites near room temperature

Basit Öğe Kaydı
dc.authoridEkicibil, Ahmet/0000-0003-3071-0444
dc.authoridFarle, Michael/0000-0002-1864-3261
dc.authoridKILIC CETIN, selda/0000-0003-4112-4475
dc.contributor.authorCetin, Selda Kili
dc.contributor.authorAcet, Mehmet
dc.contributor.authorGunes, Mustafa
dc.contributor.authorEkicibil, Ahmet
dc.contributor.authorFarle, Michael
dc.date.accessioned2025-01-06T17:43:32Z
dc.date.available2025-01-06T17:43:32Z
dc.date.issued2015
dc.description.abstractWe present an investigation on structure, magnetic and magnetocaloric properties of the perovskite manganites (La1-xSmx)(0.67)Pb0.33MnO3 (x = 0, 0.1, 0.2, 0.3) synthesized by sol-gel technique. The XRD patterns show that all synthesized samples have reflections typical of the perovskite structure with orthorhombic symmetry. Thermomagnetic measurements showed that all the samples display a paramagnetic-ferromagnetic transition with decreasing temperature. The Curie temperature decreases with increasing Sm content from 358 K for x = 0-286 K for x = 0.3. We determined the isothermal magnetic entropy changes of all the samples from the magnetization measurements and furthermore measured the adiabatic temperature change of the sample for x = 0.3 directly. The results showed that the adiabatic temperature change, determined using together the entropy change and the specific heat and the value obtained by direct temperature change measurements both give 1.3 K for a magnetic field change of 3 T at about 280 K. We also measured the cyclic adiabatic temperature-change of the sample and the results indicate that the sample undergoes a reversible temperature-change on field-cycling which is essential for magnetic refrigeration. (C) 2015 Elsevier B.V. All rights reserved.
dc.description.sponsorshipResearch Fund of Cukurova University, Adana, Turkey [FEF2010D4, FEF2013BAP29]; Deutsche Forschungsgemeinschaft [SPP1599]; Adana Science and Technology University Research Project Unit [MUHDBF.MLZM.2014-9]; Turkish Council of Higher Education
dc.description.sponsorshipThis work was supported by the Research Fund of Cukurova University, Adana, Turkey, under grant contracts no. FEF2010D4, no. FEF2013BAP29 and Deutsche Forschungsgemeinschaft SPP1599. We also acknowledge Adana Science and Technology University Research Project Unit (Project Number: MUHDBF.MLZM.2014-9). The authors acknowledge the Turkish Council of Higher Education for supporting Selda Kilic Cetin's visit to Duisburg-Essen University. We thank C. Gokhan Unlu for the support of X-ray refinement.
dc.identifier.doi10.1016/j.jallcom.2015.07.217
dc.identifier.endpage294
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.scopus2-s2.0-84939164608
dc.identifier.scopusqualityQ1
dc.identifier.startpage285
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2015.07.217
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2701
dc.identifier.volume650
dc.identifier.wosWOS:000361519300041
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofJournal of Alloys and Compounds
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectManganites
dc.subjectMagnetocaloric effect
dc.subjectCurie temperature
dc.subjectMagnetic entropy
dc.subjectAdiabatic temperature change
dc.titleMagnetocaloric effect in (La1-xSmx)0.67Pb0.33MnO3 (0 ? x ? 0.3) manganites near room temperature
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu