Journal of Materials Physics and Chemistry
ISSN (Print): 2333-4436 ISSN (Online): 2333-4444 Website: Editor-in-chief: Dr. A. Heidari
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Journal of Materials Physics and Chemistry. 2018, 6(2), 36-38
DOI: 10.12691/jmpc-6-2-1
Open AccessArticle

Activation Energy Depending on the Thickness of the Ferromagnetic Layer

A. Adanlété Adjanoh1, and R. Belhi2

1Département de Physique, Faculté des Sciences et Techniques, Université de Kara, B.P : 404, Kara, Togo

2Département de Physique, Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunis 1060, Tunisia

Pub. Date: October 23, 2018

Cite this paper:
A. Adanlété Adjanoh and R. Belhi. Activation Energy Depending on the Thickness of the Ferromagnetic Layer. Journal of Materials Physics and Chemistry. 2018; 6(2):36-38. doi: 10.12691/jmpc-6-2-1


We present the detailed study of activation energy Ea according to the thickness of the magnetic layer (tCo=0.7,0.8 and 1nm). The study was carried out at room temperature by means of polar magneto-optical Kerr effect magnetometry (PMOKE) using a He–Ne laser (λ=633nm). We found that the activation field μ0Ha, the coercive field μ0HC and the average activation energy Ea are weak for the sample with thickness tCo = 1 nm.

time of demagnetization activation field activation energy activation volume

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