Article
Combined kinetic and Bean–Rodbell approach for describing field-induced transitions in LaFe11.6Si1.4 alloys
Author/s | Moreno Ramírez, Luis Miguel
Blázquez Gámez, Javier Sebastián Radulov, I. A. Skokov, K. P. Gutfleisch, Oliver Franco García, Victorino Conde Amiano, Alejandro |
Department | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Publication Date | 2021 |
Deposit Date | 2023-05-31 |
Published in |
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Abstract | We propose a combination of the Kolmogorov–Johnson–Mehl–Avrami nucleation and growth theory and the Bean–Rodbell model to describe the field-induced transition in LaFe11.6Si1.4 alloys. The approach is applied to a set of ... We propose a combination of the Kolmogorov–Johnson–Mehl–Avrami nucleation and growth theory and the Bean–Rodbell model to describe the field-induced transition in LaFe11.6Si1.4 alloys. The approach is applied to a set of bulk samples undergoing first-order transitions produced by different routes and including doping effects. The kinetic analysis of both magnetization and demagnetization processes reveals a nucleation and three-dimensional interface-controlled growth for these alloys. Introducing the kinetic process between the metastable and stable solutions of the Bean–Rodbell model, the field dependence of the magnetization/demagnetization processes, including magnetic hysteresis for different magnetic field sweeping rates, is better reproduced than with the pure model. |
Funding agencies | Agencia Estatal de Investigación. España |
Project ID. | MAT-2016-77265-R
PID2019-105720RB-I00 |
Citation | Moreno Ramírez, L.M., Blázquez Gámez, J.S., Radulov, I.A., Skokov, K.P., Gutfleisch, O., Franco García, V. y Conde Amiano, A. (2021). Combined kinetic and Bean–Rodbell approach for describing field-induced transitions in LaFe11.6Si1.4 alloys. Journal Physics D: Applied Physics, 54 (13), 135003. https://doi.org/10.1088/1361-6463/abd583. |
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