Enhancing magnetocaloric performance through phase separation in La0.45Ca0.45Y0.05X0.05MnO3 perovskite manganites

Riheb Hamdi; Said A. Mansour; Yousef Haik

doi:10.1039/d5dt00873e

Enhancing magnetocaloric performance through phase separation in La_0.45Ca_0.45Y_0.05X_0.05MnO₃ perovskite manganites

Riheb Hamdi^*
, Said A. Mansour
, Yousef Haik

^*Corresponding author for this work

Core Laboratories

University of Sharjah
University of Jordan

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

1 Citation (Scopus)

Abstract

Magnetocaloric materials have attracted much attention in search for effective and environmentally friendly cooling technologies. The effect of phase separation on the magnetocaloric characteristics of La_0.45Ca_0.45Y_0.05X_0.05MnO₃ (LCY) manganites is investigated in this work. Structural, chemical, and magnetic analyses validate the coexistence of ferromagnetic and charge-ordered/antiferromagnetic domains, a key feature in enhancing magnetocaloric properties. With an outstanding relative cooling power of 336.6 J kg⁻¹ at 5 T, the Griffiths phase magnifies short-range ferromagnetic interactions comparable to Gd-based materials. These results highlight the crucial role of phase separation in tuning magnetocaloric characteristics and offer new insights into creating advanced magnetic refrigerants.

Original language	English
Pages (from-to)	10037-10051
Number of pages	15
Journal	Dalton Transactions
Volume	54
Issue number	25
Early online date	Jun 2025
DOIs	https://doi.org/10.1039/d5dt00873e
Publication status	Published - 24 Jun 2025

Keywords

Colossal magnetoresistance

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title = "Enhancing magnetocaloric performance through phase separation in La0.45Ca0.45Y0.05X0.05MnO3 perovskite manganites",

abstract = "Magnetocaloric materials have attracted much attention in search for effective and environmentally friendly cooling technologies. The effect of phase separation on the magnetocaloric characteristics of La0.45Ca0.45Y0.05X0.05MnO3 (LCY) manganites is investigated in this work. Structural, chemical, and magnetic analyses validate the coexistence of ferromagnetic and charge-ordered/antiferromagnetic domains, a key feature in enhancing magnetocaloric properties. With an outstanding relative cooling power of 336.6 J kg−1 at 5 T, the Griffiths phase magnifies short-range ferromagnetic interactions comparable to Gd-based materials. These results highlight the crucial role of phase separation in tuning magnetocaloric characteristics and offer new insights into creating advanced magnetic refrigerants.",

keywords = "Colossal magnetoresistance",

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doi = "10.1039/d5dt00873e",

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T1 - Enhancing magnetocaloric performance through phase separation in La0.45Ca0.45Y0.05X0.05MnO3 perovskite manganites

AU - Hamdi, Riheb

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AU - Haik, Yousef

PY - 2025/6/24

Y1 - 2025/6/24

N2 - Magnetocaloric materials have attracted much attention in search for effective and environmentally friendly cooling technologies. The effect of phase separation on the magnetocaloric characteristics of La0.45Ca0.45Y0.05X0.05MnO3 (LCY) manganites is investigated in this work. Structural, chemical, and magnetic analyses validate the coexistence of ferromagnetic and charge-ordered/antiferromagnetic domains, a key feature in enhancing magnetocaloric properties. With an outstanding relative cooling power of 336.6 J kg−1 at 5 T, the Griffiths phase magnifies short-range ferromagnetic interactions comparable to Gd-based materials. These results highlight the crucial role of phase separation in tuning magnetocaloric characteristics and offer new insights into creating advanced magnetic refrigerants.

AB - Magnetocaloric materials have attracted much attention in search for effective and environmentally friendly cooling technologies. The effect of phase separation on the magnetocaloric characteristics of La0.45Ca0.45Y0.05X0.05MnO3 (LCY) manganites is investigated in this work. Structural, chemical, and magnetic analyses validate the coexistence of ferromagnetic and charge-ordered/antiferromagnetic domains, a key feature in enhancing magnetocaloric properties. With an outstanding relative cooling power of 336.6 J kg−1 at 5 T, the Griffiths phase magnifies short-range ferromagnetic interactions comparable to Gd-based materials. These results highlight the crucial role of phase separation in tuning magnetocaloric characteristics and offer new insights into creating advanced magnetic refrigerants.

KW - Colossal magnetoresistance

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DO - 10.1039/d5dt00873e

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AN - SCOPUS:105008006318

SN - 1477-9226

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ER -

Enhancing magnetocaloric performance through phase separation in La_0.45Ca_0.45Y_0.05X_0.05MnO₃ perovskite manganites

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