Study of domain wall pinning in magnetized cobalt composite based on epoxy matrix by NMR and RF magnetometry

Ts. A. Gavasheli^a, G. I. Mamniashvili<sup>b

a</sup> Tbilisi Ivane Javakhishvili State University, Tbilisi, Georgia
^b Ivane Javakhishvili Tbilisi State University, Andronikashvili Institute of Physics, Tbilisi, Georgia

Abstract: The processes of domain wall pinning and coercivity in cobalt nanowires oriented by an external magnetic field in an epoxy matrix were studied during their magnetization reversal. NMR (spin echo method using additional magnetic video-pulse) and RF magnetometry were used. Information on the domain wall pinning force depending on the magnetic field direction relative to the magnetization of the cobalt composite and its coercive force was obtained.

Keywords: cobalt, nanowires, nmr, magnetometry, pinning, coercivity.

Received: 03.07.2024
Revised: 03.09.2024
Accepted: 05.09.2025

DOI: 10.61011/PJTF.2025.02.59550.20050

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