The Mean-Field Theory for the Study of the Magnetocaloric Effect of Nd0.67Ba0.33Mn0.98Fe0.02O3 Manganite

被引：5

作者：

Hsini, Mohamed ^{[1
]}

Hcini, Sobhi ^{[2
]}

Boudard, Michel ^{[3
]}

Zemni, Sadok ^{[1
]}

机构：

[1] Univ Monastir, Fac Sci Monastir, Dept Phys, Lab Phys Chem Mat, Monastir 5019, Tunisia

[2] Univ Kairouan, Fac Sci & Technol Sidi Bouzid, Res Unit Valorizat & Optimizat Exploitat Resource, Univ Campus Agr City, Sidi Bouzid 9100, Tunisia

[3] Univ Grenoble Aples, CNRS, LMGP, F-38000 Grenoble, France

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2018年 / 31卷 / 03期

关键词：

Mean-field theory; Bean-Rodbell model; Magnetization; Magnetocaloric effect; ROOM-TEMPERATURE;

D O I：

10.1007/s10948-017-4259-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, we exploit the mean-field theory and the Bean-Rodbell model to justify the magnetocaloric effect (MCE) on Nd0.67Ba0.33Mn0.98Fe0.02O3 manganite. The modeling of magnetic properties was investigated. The Bean-Rodbell equation of state leads the system to second-order ferromagnetic (FM)-paramagnetic (PM) phase transition. The expressions describing the magnetic entropy change under the influence of magnetic field have been derived. A large magnetic entropy has been observed in our sample with a peak centered on the Curie temperature. The theoretical calculations are compared with experimental behavior.

引用

页码：841 / 848

页数：8

共 50 条

[41] Influence of Dy addition on the magnetocaloric effect of La0.67Ca0.33Mn0.9V0.1O3 ceramics
Nisha, P.
Pillai, S. Savitha
Suresh, K. G.
Varma, Manoj Raama
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (01) : 37 - 43
[42] Study on the influence of magnetic phase transitions on the magnetocaloric effect in Sm0.7Sr0.3Mn0.95Fe0.05O3 manganite
Abdel-Khalek, E. K.
Salem, A. F.
Mohamed, E. A.
JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 608 : 180 - 184
[43] Comparative analysis of magnetocaloric effect in La0.67-xEuxBa0.33Mn0.85Fe0.15O3 (x=0 and 0.1) polycrystalline manganites: experimental vs. theoretical determination
Kharrat, Aida Ben Jazia
Chniba-Boudjada, Nassira
Boujelben, Wahiba
JOURNAL OF ELECTROCERAMICS, 2024, 52 (03) : 245 - 254
[44] Microstructure, magnetocaloric effect and near tricritical mean-field critical behavior of La 0.67 Ca 0.33-x K x MnO 3 porous nanospheres prepared by solvothermal method
Tang, Shan
Lu, Xinqin
Chen, Weijie
Hong, Bo
Wang, Xinqing
Xu, Jingcai
JOURNAL OF ALLOYS AND COMPOUNDS, 2024, 994
[45] Prediction of Magnetocaloric Effect in La0.67Pb0.33(Mn1−xCox)O3 Compounds (x = 0.01, 0.06, 0.1 and 0.15)
Mohamed Hsini
Sobhi Hcini
Sadok Zemni
Journal of Superconductivity and Novel Magnetism, 2019, 32 : 1043 - 1047
[46] Prediction of Magnetocaloric Effect in La0.67Pb0.33(Mn1-xCox)O3 Compounds (x=0.01, 0.06, 0.1 and 0.15)
Hsini, Mohamed
Hcini, Sobhi
Zemni, Sadok
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2019, 32 (04) : 1043 - 1047
[47] Modeling of Magnetic and Magnetocaloric Properties by the Molecular Mean Field Theory in La0.6Sr0.4Mn0.9V0.1O3 Oxide
M. Nasri
J. Khelifi
Sobhi Hcini
Hussein Al Robei
E. Dhahri
Mohamed Lamjed Bouazizi
Journal of Superconductivity and Novel Magnetism, 2021, 34 : 143 - 147
[48] Modeling of Magnetic and Magnetocaloric Properties by the Molecular Mean Field Theory in La0.6Sr0.4Mn0.9V0.1O3Oxide
Nasri, M.
Khelifi, J.
Hcini, Sobhi
Al Robei, Hussein
Dhahri, E.
Bouazizi, Mohamed Lamjed
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2021, 34 (01) : 143 - 147
[49] Effects of Cr,Co,Ni substitution at Mn-site on structural, magnetic properties and critical behaviour in Nd0.67Ba0.33MnO3 mixed-valent manganite
Sudakshina, B.
Suneesh, M., V
Arun, B.
Kakarla, D. Chandrasekhar
Vasundhara, M.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2022, 548
[50] Short-range ferromagnetic order in perovskite manganite La0.62Er0.05Ba0.33Mn0.95Fe0.05O3
Abassi, Mounira
Mohamed, Za
Dhahri, J.
Hlil, E. K.
JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 664 : 657 - 663

← 1 2 3 4 5 →