Structural, electronic, magnetic, and magnetocaloric properties in metallic antiperovskite compound Mn3GaC

Ennassiri, N.; Tahiri, N.; Bounagui, O. El; Ez‐Zahraouy, H.; Benyoussef, A.

doi:10.1016/j.materresbull.2017.10.029

Cited by 26 publications

(10 citation statements)

References 16 publications

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“…In fact, in addition to a heat transfer fluid, the base key of this modern technical relates also to the magneto-caloric effect (MCE) shows by some solid-state compounds, which heat up when magnetized (when the magnetic field is present) and cool down when demagnetized (once the applied magnetic field is taken off) [12]. Among the basic quantities in its quest to identify the MCE in magnetic materials, there are, for example, DS mag (Magnetic entropy change in an isothermal process) and DT ad (Adiabatic temperature change in an adiabatic process) as well as a RCP (Relative Cooling Power) [13,14]. Obtaining the large-values of these quantities in various magnetocaloric materials with relatively low-value magnetic fields (which can be created by means of permanent magnet i.e.…”

Section: Introductionmentioning

confidence: 99%

Revisiting the magnetic and magnetocaloric properties of bulk gadolinium: A combined DFT and Monte Carlo simulations

Essajai¹,

Ennassiri²,

Ballı³

et al. 2020

Phys. Scr.

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In this paper, a combination of DFT study and Monte Carlo (MC) simulations has been performed on Gd compound which undergoes a second–order phase transition from ferromagnetic state to paramagnetic one. For this single material, the temperature-dependent total magnetization and magnetic susceptibility have been calculated and are revealed that the Curie temperature is acceptable concurrence with the experimental value. Furthermore, it was showed that under an external magnetic field of 2 Tesla (T), MCE of Gd compound around its Curie point in regard to the maximum value of magnetic entropy change ( ), agrees well with the experimental one. Besides, the Relative Cooling Power (RCP) values are found to be 34.37, 69.18, 90.74 and 128 J.kg−1 under different magnetic fields of 0.5, 1.0, 1.5 and 2T, respectively. All findings which are presented here indicate that DFT calculations and Monte Carlo simulations can be efficiently used to predict the magnetic and magnetocaloric features of Gd and related alloys.

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Section: Introductionmentioning

confidence: 99%

Revisiting the magnetic and magnetocaloric properties of bulk gadolinium: A combined DFT and Monte Carlo simulations

Essajai¹,

Ennassiri²,

Ballı³

et al. 2020

Phys. Scr.

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“…[21] Moreover, the phase transitions are usually accompanied by a magnitude of the entropy change, which is related to the amount of order that is lost or gained during this transition. [5][6][7][8][9][10][11] The IP field-oriented FMR of the 3 Â 5 mm 2 Mn 3 SnC film is shown in Figure 4. 10 GHz radio frequency (rf ) power was injected and subsequently absorbed, and the first derivation of the absorbance was presented as the FMR spectrum.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…The ternary manganese compounds with a formula of Mn 3 MC (M = Al, Ga, Zn, In, and Sn) have the cubic crystal structure of an antiperovskite type: the Mn atoms on the cubic corners and the C atom centered in the unit with space group Pm

\overset{3}{true}

m . The compounds usually have a wide variety of attractive effects, like giant magnetoresistance, [ 1 ] superconductivity, [ 2 ] negative thermal expansion, [ 3 ] and magnetocaloric effect, [ 4–8 ] at magnetic or temperature fields. These detectable macroscopic effects promote the materials to be the outstanding candidate for mature magnetic device applications.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic Field‐Oriented Electrical Transport Properties in Antiperovskite Mn₃SnC

Yan

Liang

et al. 2022

Physica Rapid Research Ltrs

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Antiperovskite bulk materials show attractive properties and have potential applications on the magnetic sensor, zero thermal expansion, and magnetocaloric effect. Hence, it is important to intensively study the materials on multiple dimensionalities. Herein, the Mn3SnC thick films with variable planar size are used for longitudinal resistivity, magnetization, and ferromagnetic resonance (FMR) properties study. An abnormal thermal hysteresis loop feature and angular‐dependant longitudinal resistivity of the Mn3SnC around the first‐order phase transition under in‐plane (IP) magnetic field for the first time are found. This abnormal thermal hysteresis loop is affected by magnetic field direction, IP angle, and field strength. The angular‐dependent longitudinal resistivity measurement implies that the electrical transport properties of Mn3SnC correlate with the IP magnetic field orientation and show high angular sensitivity. This novel feature of Mn3SnC relates to the spin‐Hall magnetoresistance. The discrepancy between IP and out‐of‐plane magnetization indicates the variable planer arrangement of Mn atoms, which affects magnetic interactions. The dynamic property of FMR is studied on the Mn3SnC sample, and the phase transition temperature is consistent with that of the electrical transport and magnetization study.

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“…Some models analyze the MCE using different methods. Recently, the properties of MCE were studied by several theoretical methods, namely, mean-field theory (MFT) [20][21][22][23][24][25][26][27], effective-field theory (EFT) [28][29][30][31][32][33], Monte Carlo (MC) simulation [34][35][36][37][38][39] and first-principles calculations [40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Theoretical analysis of magnetic properties and the magnetocaloric effect using the Blume-Capel model

Oliveira¹,

Morais²,

Santos³

et al. 2022

Condens. Matter Phys.

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This work investigates the magnetic properties and the magnetocaloric effect in the spin-1 Blume-Capel model. The study was carried out using the mean-field theory from the Bogoliubov inequality to obtain the expressions of free energy, magnetization and entropy. The magnetocaloric effect was calculated from the variation of the entropy obtained by the mean-field theory. Due to the dependence on the external magnetic field and the anisotropy included in the model, the results for the magnetocaloric effect provided the system with first-order and continuous phase transitions. To ensure the results, the Maxwell relations were used in the intervals where the model presents continuous variations in magnetization and the Clausius-Clapeyron equation in the intervals where the model presents discontinuity in the magnetization. The methods and models for the analysis of a magnetic entropy change and first-order and continuous magnetic phase transitions, such as mean-field theory and the Blume-Capel model, are useful tools in understanding the nature of the magnetocaloric effect and its physical relevance.

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Structural, electronic, magnetic, and magnetocaloric properties in metallic antiperovskite compound Mn3GaC

Cited by 26 publications

References 16 publications

Revisiting the magnetic and magnetocaloric properties of bulk gadolinium: A combined DFT and Monte Carlo simulations

Revisiting the magnetic and magnetocaloric properties of bulk gadolinium: A combined DFT and Monte Carlo simulations

Magnetic Field‐Oriented Electrical Transport Properties in Antiperovskite Mn₃SnC

Theoretical analysis of magnetic properties and the magnetocaloric effect using the Blume-Capel model

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Structural, electronic, magnetic, and magnetocaloric properties in metallic antiperovskite compound Mn3GaC

Cited by 26 publications

References 16 publications

Revisiting the magnetic and magnetocaloric properties of bulk gadolinium: A combined DFT and Monte Carlo simulations

Revisiting the magnetic and magnetocaloric properties of bulk gadolinium: A combined DFT and Monte Carlo simulations

Magnetic Field‐Oriented Electrical Transport Properties in Antiperovskite Mn3SnC

Theoretical analysis of magnetic properties and the magnetocaloric effect using the Blume-Capel model

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Product

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Magnetic Field‐Oriented Electrical Transport Properties in Antiperovskite Mn₃SnC