Study of domain wall pinning in magnetized cobalt composite based on epoxy matrix by NMR and RF magnetometry
Gavasheli Ts. A.1, Mamniashvili G.I.2
1Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
2E.Andronikashvili Institute of Physics, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
Email: tsismari.gavasheli@tsu.ge, mgrigor@rocketmail.com
The processes of domain wall pinning and coercivity in cobalt nanowires oriented by external magnetic field in the epoxy matrix were studied during their magnetization reversal. The methods used were NMR (the spin echo method involving the additional magnetic video pulse) and RF magnetometry. Information on the domain wall pinning force in dependence on the magnetic field direction relative to the cobalt composite magnetization and its coercive force was obtained. Keywords: cobalt, nanowires, NMR, magnetometry, pinning, coercivity.
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