Structural, magnetic, magnetocaloric properties and critical behavior of La_(0.62)Nd_(0.05)Ba_(0.33)MnO_3 elaborated by co-precipitation process

S. Tillaoui; A. El Boubekri; A. Essoumhi; M. Sajieddine; E.K. Hlil; R. Moubah; M. Sahlaoui; A. Razouk; H. Lassri

首页> 外文期刊>Materials Science and Engineering >Structural, magnetic, magnetocaloric properties and critical behavior of La_(0.62)Nd_(0.05)Ba_(0.33)MnO_3 elaborated by co-precipitation process

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Structural, magnetic, magnetocaloric properties and critical behavior of La_(0.62)Nd_(0.05)Ba_(0.33)MnO_3 elaborated by co-precipitation process

机译：通过共沉淀过程阐述的LA_（0.62）ND_（0.05）ND_（0.05）BA_（0.33）MNO_3的结构，磁性，磁热性能和临界行为

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La_(0.62)Nd_(0.05)Ba_(0.33)MnO_3 nanoparticles were prepared using co-precipitation process. Single phase compound formation was confirmed using X-ray diffraction analysis. The elaborated sample annealed at 1000 °C in air during 10 h, crystallizes in the rhombohedral perovskite structure with R-3c space group. Magnetic measurements reveal the presence of a magnetic transition from paramagnetic (PM) to ferromagnetic (FM) phase in the vicinity of Curie temperature (270 K). Furthermore, the Arrott plots reveal a second order magnetic transition. Interestingly, La_(0.62)Nd_(0.05)Ba_(0.33)MO_3 sample presents a large relative cooling power (RCP) it is 315 J.kg~(-1) at 5 T). The critical exponents were studied by both approaches: Modified Arrott plots and Kouvel Fisher.

机译：使用共沉淀法制备La_（0.62）Nd_（0.05）Ba_（0.33）MnO_3纳米颗粒。使用X射线衍射分析证实单相化合物形成。在10小时内在空气中在1000℃下退火的详细样品，用R-3C空间组在菱形钙钛矿结构中结晶。磁测量揭示了在居里温度（270k）附近的顺磁（PM）至铁磁性（FM）相的磁性转变的存在。此外，Arrott图揭示了二阶磁转换。有趣的是，LA_（0.62）ND_（0.05）BA_（0.33）MO_3样品呈现出大的相对冷却功率（RCP），在5吨时为315 J.kg〜（-1）。通过两种方法研究了临界指数：改进的Arrott Ploto和Kouvel Fisher。

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《Materials Science and Engineering》 |2021年第4期|115052.1-115052.7|共7页
作者
S. Tillaoui; A. El Boubekri; A. Essoumhi; M. Sajieddine; E.K. Hlil; R. Moubah; M. Sahlaoui; A. Razouk; H. Lassri;
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LPM FST Sultan Moulay Slimane University 23000 Beni-Mellal Morocco;

LPM FST Sultan Moulay Slimane University 23000 Beni-Mellal Morocco;

LPM FST Sultan Moulay Slimane University 23000 Beni-Mellal Morocco LPCMA FP Sultan Moulay Slimane University 23000 Beni-Mellal Morocco;

LPM FST Sultan Moulay Slimane University 23000 Beni-Mellal Morocco National School of Applied Sciences Sultan Moulay Slimane University 25000 Khouribga Morocco;

Univ. Grenoble Alpes CNRS Grenoble INP Institut Neel 38000 Grenoble France;

LPMMAT Faculty of Sciences Aien-Chock Hassan Ⅱ University of Casablanca Casablanca Morocco;

LPM FST Sultan Moulay Slimane University 23000 Beni-Mellal Morocco;

LPM FST Sultan Moulay Slimane University 23000 Beni-Mellal Morocco;

LPMMAT Faculty of Sciences Aien-Chock Hassan Ⅱ University of Casablanca Casablanca Morocco;

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Perovskite; Magnetocaloric effect; X-ray diffraction; Critical behavior;

机译：Perovskite;磁无线效应;X射线衍射;关键行为;

Structural, magnetic, magnetocaloric properties and critical behavior of La_(0.62)Nd_(0.05)Ba_(0.33)MnO_3 elaborated by co-precipitation process

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