Structural characterization, magnetic, magnetocaloric properties and phenomenological model in manganite La0.75 Sr0.1Ca0.15 MnO3 compound

Dhahri, Ah.; Jemmali, M.; Dhahri, E.; Valente, M.A.

doi:10.1016/j.jallcom.2015.01.314

Cited by 85 publications

(15 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, the specific heat can be calculated from the field dependence of the external magnetic entropy from zero to µ 0 H max by the following equation [44]:…”

Section: Magnetocaloric Behavioursmentioning

confidence: 99%

Effect of Fe Substitution on the Physical Properties of La0.62Er0.05Ba0.33Mn1−xFexO3(x = 0.00, 0.05 and 0.15)

Abassi

2018

J Supercond Nov Magn

View full text Add to dashboard Cite

Morphology, magnetic and magnetocaloric properties of La 0.62 Er 0.05 Ba 0.33 Mn 1−x Fe x O 3 (x = 0.00, 0.05 and 0.15) were experimentally investigated. Solid-state reaction method was used in the preparation of the samples. The microstructure of the samples was determined by scanning electron microscopy (SEM). From the XRD study, it has been found that all samples are single-phased and crystallized in the rhombohedral structure with the R3-c space group. For x = 0.05 and 0.15, a steep drop of zero field-cooled (ZFC) magnetization at low temperature signifies the formation of cluster-or spinglass state. This is caused by the competition between the ferromagnetic and antiferromagnetic interaction. A sensitive response to substituting Fe for Mn is observed in the magnetic and magnetocaloric properties. We found that Fe doping is powerful enough to reduce Curie temperature T C and it brings about cluster glass behaviours. The magnetocaloric effect is calculated from the measurement of initial isothermal magnetization versus magnetic field at various temperatures. The maximum entropy change S max M reaches the highest values of 3.31, 3.12, and 2.57 J/kg K in magnetic field. However, the relative cooling power decreases with Fe content from x = 227.44 to 188.68 J/kg for x = 0.00 to x = 0.15 compositions, respectively.

show abstract

“…On the other hand, the specific heat can be calculated from the field dependence of the external magnetic entropy from zero to µ 0 H max by the following equation [44]:…”

Section: Magnetocaloric Behavioursmentioning

confidence: 99%

Effect of Fe Substitution on the Physical Properties of La0.62Er0.05Ba0.33Mn1−xFexO3(x = 0.00, 0.05 and 0.15)

Abassi

2018

J Supercond Nov Magn

View full text Add to dashboard Cite

show abstract

“…It was possible to estimate the average particle size Sc from powder XRD peaks using the Scherer equation, which describes the grain size using the size broadening of the peaks from the relation [8] …”

Section: Structural Propertiesmentioning

confidence: 99%

Influence of Na Addition on Magnetic and Magnetocaloric Effects of La0.67Pb0.13Na0.2MnO3 Ceramics

Zaidi

Dhahri

et al. 2016

J Supercond Nov Magn

View full text Add to dashboard Cite

Structural, magnetic, magnetocaloric, and electrical properties are reported for mixed-valence manganite La 0.67 Pb 0.13 Na 0.2 MnO 3 . X-ray diffraction reveals that the sample crystallizes in the rhombohedric structure with the R-3c space group. The magnetic properties of the polycrystalline La 0.67 Pb 0.13 Na 0.2 MnO 3 compound are discussed in detail, based on the susceptibility, magnetization, and isotherm. The sample presents a ferromagnetic property with T C = 275 K and a Griffiths phase at T G = 325 K which gives the existence of ferromagnetic clusters in the paramagnetic domain. A large deviation is usually observed between field cooled (FC) and zero field cooled (ZFC). M(T ) is a low temperature below the blocking temperature. At 40 K, a spin-glass or a cluster-glass state is seen to arise from a ferromagnetic state. This is caused by the competition between the antiferromagnetic and ferromagnetic interactions. The electrical properties show the presence of a metal-semiconductor transition at T M−Sc . To understand the dependence of disorder with the transport mechanism, we used the phenomenological equation for Ahmed Dhahri jemai 2000@outlook.fr 1 Laboratoire de la matière condensée et des nanosciences, resistivity under a percolation approach, which is dependent on the phase segregation of a paramagnetic semiconductor and ferromagnetic metallic regions.

show abstract

“…10,11 With large magnetic entropy change, small thermal and magnetic hysteresis, and relatively low cost, 12 manganites have been the subject of intensive research activities for several years as the most promoter materials for refrigeration. These materials are given a particular attention from scientic community not only for its dynamic ability for uses in device applications [13][14][15] but also for its impressive physical properties. [16][17][18][19][20] Nowadays, researches are focusing on how to enhance the MCE values of perovskite manganites and create new material system with signicant magnetocaloric properties in a wide temperature range around room temperature.…”

Section: Introductionmentioning

confidence: 99%

Structural, magnetic and magnetocaloric properties of 0.75La_0.6Ca_0.4MnO₃/0.25La_0.6Sr_0.4MnO₃ nanocomposite manganite

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

Structural characterization, magnetic, magnetocaloric properties and phenomenological model in manganite La0.75 Sr0.1Ca0.15 MnO3 compound

Cited by 85 publications

References 21 publications

Effect of Fe Substitution on the Physical Properties of La0.62Er0.05Ba0.33Mn1−xFexO3(x = 0.00, 0.05 and 0.15)

Effect of Fe Substitution on the Physical Properties of La0.62Er0.05Ba0.33Mn1−xFexO3(x = 0.00, 0.05 and 0.15)

Influence of Na Addition on Magnetic and Magnetocaloric Effects of La0.67Pb0.13Na0.2MnO3 Ceramics

Structural, magnetic and magnetocaloric properties of 0.75La_0.6Ca_0.4MnO₃/0.25La_0.6Sr_0.4MnO₃ nanocomposite manganite

Contact Info

Product

Resources

About

Structural characterization, magnetic, magnetocaloric properties and phenomenological model in manganite La0.75 Sr0.1Ca0.15 MnO3 compound

Cited by 85 publications

References 21 publications

Effect of Fe Substitution on the Physical Properties of La0.62Er0.05Ba0.33Mn1−xFexO3(x = 0.00, 0.05 and 0.15)

Effect of Fe Substitution on the Physical Properties of La0.62Er0.05Ba0.33Mn1−xFexO3(x = 0.00, 0.05 and 0.15)

Influence of Na Addition on Magnetic and Magnetocaloric Effects of La0.67Pb0.13Na0.2MnO3 Ceramics

Structural, magnetic and magnetocaloric properties of 0.75La0.6Ca0.4MnO3/0.25La0.6Sr0.4MnO3 nanocomposite manganite

Contact Info

Product

Resources

About

Structural, magnetic and magnetocaloric properties of 0.75La_0.6Ca_0.4MnO₃/0.25La_0.6Sr_0.4MnO₃ nanocomposite manganite