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Title: Effect of Small Fe Content on the Structure, Magnetic and Magnetocaloric Properties of SmNi{sub 3−x}Fe{sub x} (x = 0; 0.3 and 0.8) Intermetallic Compounds

Abstract

The SmNi{sub 3−x}Fe{sub x} (x = 0; 0.3 and 0.8) were synthesized by arc melting and annealed at 1073 K for 1 week. The Rietveld refinement showed that these compounds crystallize in the PuNi{sub 3}-type structure (R3̄m-Space group) and the substitution of nickel by iron leads to an increase of the unit cell volume. The Curie temperature (T{sub C}) of the SmNi{sub 3−x}Fe{sub x} (x = 0; 0.3 and 0.8) samples increases from 60 K for SmNi{sub 3} to 230 K for SmNi{sub 2.2}Fe{sub 0.8}, the enhancement of T{sub C} is ruled by electronic and magnetovolumic effects. All the samples exhibit a second-order magnetic phase transition at Curie temperature T{sub C}. The magnetic entropy change ΔS{sub M} was estimated from isothermal magnetization curves and it decreases with the increase of Fe content from 2.3 J/kg.K (x = 0) to 0.6 J/kg.K (x = 0.8) at 50 kOe. The critical properties of SmNi{sub 2.7}Fe{sub 0.3} (as an example) intermetallic compound at the ferromagnetic-paramagnetic (FM-PM) transition have been analyzed. The estimated critical exponents derived from the magnetic data using various methods such as modified Arrott plot, Kouvel-Fisher method and critical magnetization isotherms M(T{sub C}, H). The critical exponent values for the materialmore » are in a close agreement with those predicted for the mean-field theory. The reason for this behavior may be long-range interactions between spins in this system.« less

Authors:
 [1]; ;  [2];  [3];  [2];  [3];  [4]
  1. Qassim University, Chemistry Departement, College of Science and Arts at Ar-Rass (Saudi Arabia)
  2. Université de Sfax, Laboratoire des Sciences des Matériaux et de l’Environnement, Faculté des Sciences de Sfax (Tunisia)
  3. Université de Sfax, Laboratoire de Physique appliqué, Département de physique, Faculté des Sciences de Sfax (Tunisia)
  4. UPEC, Université Paris Est, ICMPE (UMR 7182), CNRS (France)
Publication Date:
OSTI Identifier:
22782493
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 2; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; Article Copyright (c) 2017 Springer Science+Business Media, LLC; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANNEALING; CURIE POINT; ENTROPY; INTERMETALLIC COMPOUNDS; IRON ADDITIONS; MAGNETIC PROPERTIES; MAGNETIZATION; MEAN-FIELD THEORY; NICKEL COMPOUNDS; PARAMAGNETISM; SAMARIUM COMPOUNDS; SPACE GROUPS; SPIN

Citation Formats

Jemmali, M., E-mail: jmosbah73@gmail.com, Nouri, K., E-mail: nourikamel10@yahoo.com, Walha, S., Benali, A., Salah, A. Ben, Dhahri, E., and Bessais, L.. Effect of Small Fe Content on the Structure, Magnetic and Magnetocaloric Properties of SmNi{sub 3−x}Fe{sub x} (x = 0; 0.3 and 0.8) Intermetallic Compounds. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4208-0.
Jemmali, M., E-mail: jmosbah73@gmail.com, Nouri, K., E-mail: nourikamel10@yahoo.com, Walha, S., Benali, A., Salah, A. Ben, Dhahri, E., & Bessais, L.. Effect of Small Fe Content on the Structure, Magnetic and Magnetocaloric Properties of SmNi{sub 3−x}Fe{sub x} (x = 0; 0.3 and 0.8) Intermetallic Compounds. United States. doi:10.1007/S10948-017-4208-0.
Jemmali, M., E-mail: jmosbah73@gmail.com, Nouri, K., E-mail: nourikamel10@yahoo.com, Walha, S., Benali, A., Salah, A. Ben, Dhahri, E., and Bessais, L.. Thu . "Effect of Small Fe Content on the Structure, Magnetic and Magnetocaloric Properties of SmNi{sub 3−x}Fe{sub x} (x = 0; 0.3 and 0.8) Intermetallic Compounds". United States. doi:10.1007/S10948-017-4208-0.
@article{osti_22782493,
title = {Effect of Small Fe Content on the Structure, Magnetic and Magnetocaloric Properties of SmNi{sub 3−x}Fe{sub x} (x = 0; 0.3 and 0.8) Intermetallic Compounds},
author = {Jemmali, M., E-mail: jmosbah73@gmail.com and Nouri, K., E-mail: nourikamel10@yahoo.com and Walha, S. and Benali, A. and Salah, A. Ben and Dhahri, E. and Bessais, L.},
abstractNote = {The SmNi{sub 3−x}Fe{sub x} (x = 0; 0.3 and 0.8) were synthesized by arc melting and annealed at 1073 K for 1 week. The Rietveld refinement showed that these compounds crystallize in the PuNi{sub 3}-type structure (R3̄m-Space group) and the substitution of nickel by iron leads to an increase of the unit cell volume. The Curie temperature (T{sub C}) of the SmNi{sub 3−x}Fe{sub x} (x = 0; 0.3 and 0.8) samples increases from 60 K for SmNi{sub 3} to 230 K for SmNi{sub 2.2}Fe{sub 0.8}, the enhancement of T{sub C} is ruled by electronic and magnetovolumic effects. All the samples exhibit a second-order magnetic phase transition at Curie temperature T{sub C}. The magnetic entropy change ΔS{sub M} was estimated from isothermal magnetization curves and it decreases with the increase of Fe content from 2.3 J/kg.K (x = 0) to 0.6 J/kg.K (x = 0.8) at 50 kOe. The critical properties of SmNi{sub 2.7}Fe{sub 0.3} (as an example) intermetallic compound at the ferromagnetic-paramagnetic (FM-PM) transition have been analyzed. The estimated critical exponents derived from the magnetic data using various methods such as modified Arrott plot, Kouvel-Fisher method and critical magnetization isotherms M(T{sub C}, H). The critical exponent values for the material are in a close agreement with those predicted for the mean-field theory. The reason for this behavior may be long-range interactions between spins in this system.},
doi = {10.1007/S10948-017-4208-0},
journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 2,
volume = 31,
place = {United States},
year = {2018},
month = {2}
}