Séminaire PHENIX | Julian Geshev "Analysis of magnetization curves: criteria for saturation..."
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Le 29 Sep. 2023
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11:00 - 12:00
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Séminaire
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Sorbonne-Université, campus Pierre et Marie Curie
UFR de chimie, tour 32-42, 1er étage, salle 101
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Lingsam Tea
| Séminaire | Personnalité invitée |
| Titre |
ANALYSIS OF MAGNETIZATION CURVES: CRITERIA FOR SATURATION, ANISOTROPY, AND INTERACTION PARAMETER'S EVALUATION
ANALYSE DES COURBES DE MAGNÉTISATION : CRITÈRES DE SATURATION, D'ANISOTROPIE ET ÉVALUATION DES PARAMÈTRES D'INTERACTION
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| Présenté par |
Julian Geshev |
| Affectation |
Instituto de Fisica, Universidade Federal do Rio Grande do Sul, Brazil |
| Résumé | Correct estimation of magnetization curve parameters (saturation magnetization, anisotropy field etc.) is crucial for ferromagnets characterization. Here, criteria for be presented. Examinations of such loops, together with analyses for remnant magnetization (IRM, DCD) and thermomagnetic curves will be exemplified. Also, recent advances in evaluating magnetic interactions using the recently developed recoil-curve method instead of the remanence plots are discussed. E.g., a recoil-curve plot does not demand demagnetization and is acquired in an easier and much faster manner than the classical remanence one. Applications of these techniques for characterizing magnetic nanoparticle systems will be presented as well. |
| Contact PHENIX | Lingsam Tea |