skip to main content

Title: Influence of Zn on magnetocaloric effect in (0.95)La{sub 0.7}Sr{sub 0.3}MnO{sub 3}/Ni{sub 1−x}Zn{sub x}Fe{sub 2}O{sub 4} ceramic composites

Highlights: • Synthesis of magnetic ceramic composites. • Magnetization of dual phase ceramics. • Magnetic entropy change in (0.95)La{sub 0.7}Sr{sub 0.3}MnO{sub 3}/(0.05)Ni{sub 1−x}Zn{sub x}Fe{sub 2}O{sub 4} solid solution. - Abstract: We report the magnetic and magnetocaloric properties of (0.95)La{sub 0.7}Sr{sub 0.3}MnO{sub 3}/(0.05)Ni{sub 1−x}Zn{sub x}Fe{sub 2}O{sub 4} (x = 0.0, 0.1, 0.3, and 0.5) ceramic composites. The composite samples with nominal compositions were prepared using the conventional solid-state reaction method. The phase purity and structure were confirmed by using X-ray diffraction. Temperature dependent magnetization measurements and Arrott analysis reveal second order of magnetic phase transition in the composite samples. A maximum in magnetic entropy change of ∼0.75 J/kg K at 1 T has been observed in (0.95)La{sub 0.7}Sr{sub 0.3}MnO{sub 3}/(0.05)NiFe{sub 2}O{sub 4} sample. The values of magnetic entropy change of these composites make them attractive for potential applications. These composite samples may consider as potential material for magnetic refrigeration near room temperature.
Authors:
 [1] ;  [2] ; ;  [1] ;  [3] ;  [1]
  1. School of Materials Science and Engineering, Changwon National University, Changwon 641-773 (Korea, Republic of)
  2. Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451 (Saudi Arabia)
  3. College of Science and General Studies, Alfaisal University, Riyadh 11533 (Saudi Arabia)
Publication Date:
OSTI Identifier:
22475869
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 69; Conference: ISFM 2014: 6. international symposium on functional materials, Singapore (Singapore), 4-7 Aug 2014; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; COMPOSITE MATERIALS; ENTROPY; FERRITES; IMPURITIES; LANTHANUM COMPOUNDS; MAGNETIC PROPERTIES; MAGNETIZATION; MANGANATES; MICROSTRUCTURE; NICKEL COMPOUNDS; PHASE TRANSFORMATIONS; SOLID SOLUTIONS; STRONTIUM COMPOUNDS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; X-RAY DIFFRACTION; ZINC ADDITIONS; ZINC COMPOUNDS