Critical behavior in Nd2Pt2In studied using the magnetocaloric effect: Comparison with the conventional method

J. J. Mboukam; M. B. Tchoula Tchokonté; A. K.H. Bashir; B. M. Sondezi; B. N. Sahu; A. M. Strydom; D. Kaczorowski

doi:10.1016/j.materresbull.2019.110604

Critical behavior in Nd₂Pt₂In studied using the magnetocaloric effect: Comparison with the conventional method

J. J. Mboukam, M. B. Tchoula Tchokonté, A. K.H. Bashir, B. M. Sondezi, B. N. Sahu, A. M. Strydom, D. Kaczorowski

Physics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Critical behavior in the Nd₂Pt₂In compound around the ferromagnetic phase transition at T_C was investigated based on the magnetocaloric effect (MCE). The critical exponent values β = 0.42(6), γ = 1.25(2) and δ = 4.00(2) obtained from the magnetic entropy change at T_C and the critical magnetization isotherm, M(μ₀H, T_C), indicated that the magnetic interactions in this compound follow two different universality classes below and above T_C, which can be described in terms of the 3D-Heisenberg and 3D-Ising models, respectively. The studies by means of the conventional method using different techniques gave values of the critical exponents that are in close agreement with those derived from the MCE analysis and also confirmed two different behaviors in the ferromagnetic and paramagnetic states.

Original language	English
Article number	110604
Journal	Materials Research Bulletin
Volume	122
DOIs	https://doi.org/10.1016/j.materresbull.2019.110604
Publication status	Published - Feb 2020

Keywords

Critical phenomena
Ferromagnetic
Magnetocaloric effect
NdPtIn

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.materresbull.2019.110604

Cite this

@article{1408874f38784f04b6f7fa63b61c05d6,

title = "Critical behavior in Nd2Pt2In studied using the magnetocaloric effect: Comparison with the conventional method",

abstract = "Critical behavior in the Nd2Pt2In compound around the ferromagnetic phase transition at TC was investigated based on the magnetocaloric effect (MCE). The critical exponent values β = 0.42(6), γ = 1.25(2) and δ = 4.00(2) obtained from the magnetic entropy change at TC and the critical magnetization isotherm, M(μ0H, TC), indicated that the magnetic interactions in this compound follow two different universality classes below and above TC, which can be described in terms of the 3D-Heisenberg and 3D-Ising models, respectively. The studies by means of the conventional method using different techniques gave values of the critical exponents that are in close agreement with those derived from the MCE analysis and also confirmed two different behaviors in the ferromagnetic and paramagnetic states.",

keywords = "Critical phenomena, Ferromagnetic, Magnetocaloric effect, NdPtIn",

author = "Mboukam, {J. J.} and {Tchoula Tchokont{\'e}}, {M. B.} and Bashir, {A. K.H.} and Sondezi, {B. M.} and Sahu, {B. N.} and Strydom, {A. M.} and D. Kaczorowski",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2020",

month = feb,

doi = "10.1016/j.materresbull.2019.110604",

language = "English",

volume = "122",

journal = "Materials Research Bulletin",

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TY - JOUR

T1 - Critical behavior in Nd2Pt2In studied using the magnetocaloric effect

T2 - Comparison with the conventional method

AU - Mboukam, J. J.

AU - Tchoula Tchokonté, M. B.

AU - Bashir, A. K.H.

AU - Sondezi, B. M.

AU - Sahu, B. N.

AU - Strydom, A. M.

AU - Kaczorowski, D.

PY - 2020/2

Y1 - 2020/2

N2 - Critical behavior in the Nd2Pt2In compound around the ferromagnetic phase transition at TC was investigated based on the magnetocaloric effect (MCE). The critical exponent values β = 0.42(6), γ = 1.25(2) and δ = 4.00(2) obtained from the magnetic entropy change at TC and the critical magnetization isotherm, M(μ0H, TC), indicated that the magnetic interactions in this compound follow two different universality classes below and above TC, which can be described in terms of the 3D-Heisenberg and 3D-Ising models, respectively. The studies by means of the conventional method using different techniques gave values of the critical exponents that are in close agreement with those derived from the MCE analysis and also confirmed two different behaviors in the ferromagnetic and paramagnetic states.

AB - Critical behavior in the Nd2Pt2In compound around the ferromagnetic phase transition at TC was investigated based on the magnetocaloric effect (MCE). The critical exponent values β = 0.42(6), γ = 1.25(2) and δ = 4.00(2) obtained from the magnetic entropy change at TC and the critical magnetization isotherm, M(μ0H, TC), indicated that the magnetic interactions in this compound follow two different universality classes below and above TC, which can be described in terms of the 3D-Heisenberg and 3D-Ising models, respectively. The studies by means of the conventional method using different techniques gave values of the critical exponents that are in close agreement with those derived from the MCE analysis and also confirmed two different behaviors in the ferromagnetic and paramagnetic states.

KW - Critical phenomena

KW - Ferromagnetic

KW - Magnetocaloric effect

KW - NdPtIn

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