Effect of trivalent rare earth doping on magnetic and magnetocaloric properties of La0.47(Y,Eu)0.2Pb0.33MnO3 manganites

A. Ben Hassine; A. Dhahri; M. L. Bouazizi; M. Oumezzine; E. K. Hlil

doi:10.1016/j.ceramint.2016.10.098

Effect of trivalent rare earth doping on magnetic and magnetocaloric properties of La_0.47(Y,Eu)_0.2Pb_0.33MnO₃ manganites

A. Ben Hassine
, A. Dhahri
, M. L. Bouazizi
, M. Oumezzine
, E. K. Hlil

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The La_0.47Ln_0.2Pb_0.33MnO₃ (Ln=Eu and Y) polycrystalline has been synthesized using the solid state reaction method at high temperature. The X-ray diffraction shows that the materials crystallized in the orthorhombic structure. Magnetization measurements versus temperature in a magnetic applied field of 0.05 T show that all our samples exhibit a paramagnetic–ferromagnetic transition with decreasing temperature. The value of the Curie temperatures are 275 K and 264 K for Ln=Eu and Y, respectively. The magnetic entropy change reaches a peak (−ΔS_m^max) also decreases from 3.31 J/kg. K for Ln=Eu to 2.97 J/kg. K for Ln=Y, and the corresponding values of relative cooling power (RCP) reach 243.25 and 178.88 J/kg, under a magnetic field of 5 T. The results suggest that those polycrystalline could be useful for magnetic refrigeration in a broad temperature range.

Original language	English
Pages (from-to)	1390-1393
Number of pages	4
Journal	Ceramics International
Volume	43
Issue number	1
DOIs	https://doi.org/10.1016/j.ceramint.2016.10.098
State	Published - 1 Jan 2017

Keywords

Magnetic entropy
Magneto-caloric effect
Manganite

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@article{faf275d7a51b46c4a155e3e3d455d364,

title = "Effect of trivalent rare earth doping on magnetic and magnetocaloric properties of La0.47(Y,Eu)0.2Pb0.33MnO3 manganites",

abstract = "The La0.47Ln0.2Pb0.33MnO3 (Ln=Eu and Y) polycrystalline has been synthesized using the solid state reaction method at high temperature. The X-ray diffraction shows that the materials crystallized in the orthorhombic structure. Magnetization measurements versus temperature in a magnetic applied field of 0.05 T show that all our samples exhibit a paramagnetic–ferromagnetic transition with decreasing temperature. The value of the Curie temperatures are 275 K and 264 K for Ln=Eu and Y, respectively. The magnetic entropy change reaches a peak (−ΔSmmax) also decreases from 3.31 J/kg. K for Ln=Eu to 2.97 J/kg. K for Ln=Y, and the corresponding values of relative cooling power (RCP) reach 243.25 and 178.88 J/kg, under a magnetic field of 5 T. The results suggest that those polycrystalline could be useful for magnetic refrigeration in a broad temperature range.",

keywords = "Magnetic entropy, Magneto-caloric effect, Manganite",

author = "\{Ben Hassine\}, A. and A. Dhahri and Bouazizi, \{M. L.\} and M. Oumezzine and Hlil, \{E. K.\}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd and Techna Group S.r.l.",

year = "2017",

month = jan,

day = "1",

doi = "10.1016/j.ceramint.2016.10.098",

language = "English",

volume = "43",

pages = "1390--1393",

journal = "Ceramics International",

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TY - JOUR

T1 - Effect of trivalent rare earth doping on magnetic and magnetocaloric properties of La0.47(Y,Eu)0.2Pb0.33MnO3 manganites

AU - Ben Hassine, A.

AU - Dhahri, A.

AU - Bouazizi, M. L.

AU - Oumezzine, M.

AU - Hlil, E. K.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The La0.47Ln0.2Pb0.33MnO3 (Ln=Eu and Y) polycrystalline has been synthesized using the solid state reaction method at high temperature. The X-ray diffraction shows that the materials crystallized in the orthorhombic structure. Magnetization measurements versus temperature in a magnetic applied field of 0.05 T show that all our samples exhibit a paramagnetic–ferromagnetic transition with decreasing temperature. The value of the Curie temperatures are 275 K and 264 K for Ln=Eu and Y, respectively. The magnetic entropy change reaches a peak (−ΔSmmax) also decreases from 3.31 J/kg. K for Ln=Eu to 2.97 J/kg. K for Ln=Y, and the corresponding values of relative cooling power (RCP) reach 243.25 and 178.88 J/kg, under a magnetic field of 5 T. The results suggest that those polycrystalline could be useful for magnetic refrigeration in a broad temperature range.

AB - The La0.47Ln0.2Pb0.33MnO3 (Ln=Eu and Y) polycrystalline has been synthesized using the solid state reaction method at high temperature. The X-ray diffraction shows that the materials crystallized in the orthorhombic structure. Magnetization measurements versus temperature in a magnetic applied field of 0.05 T show that all our samples exhibit a paramagnetic–ferromagnetic transition with decreasing temperature. The value of the Curie temperatures are 275 K and 264 K for Ln=Eu and Y, respectively. The magnetic entropy change reaches a peak (−ΔSmmax) also decreases from 3.31 J/kg. K for Ln=Eu to 2.97 J/kg. K for Ln=Y, and the corresponding values of relative cooling power (RCP) reach 243.25 and 178.88 J/kg, under a magnetic field of 5 T. The results suggest that those polycrystalline could be useful for magnetic refrigeration in a broad temperature range.

KW - Magnetic entropy

KW - Magneto-caloric effect

KW - Manganite

UR - https://www.scopus.com/pages/publications/84995495560

U2 - 10.1016/j.ceramint.2016.10.098

DO - 10.1016/j.ceramint.2016.10.098

M3 - Article

AN - SCOPUS:84995495560

SN - 0272-8842

VL - 43

SP - 1390

EP - 1393

JO - Ceramics International

JF - Ceramics International

IS - 1

ER -

Effect of trivalent rare earth doping on magnetic and magnetocaloric properties of La_0.47(Y,Eu)_0.2Pb_0.33MnO₃ manganites

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Keywords

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