Ferromagnetic resonance investigations on Ga0.965Mn0.035As film

Ferromagnetic Film on a Superconducting Substrate

We study the equilibrium domain structure and magnetic flux around a ferromagnetic (FM) film with perpendicular magnetization M 0 on a super-conducting (SC) substrate. At 4πM 0 < H c1 the SC is in the Meissner state and the equilibrium domain width in the film, l, scales as (l/4πλ L) = (l N /4πλ L) 2/3 with the domain width on a normal (non-superconducting) substrate, l N /4πλ L ≫ 1. Here λ L i...

Ferromagnetic resonance

Ferromagnetic Resonance

Ferromagnetism is used to characterize magnetic behavior of a material, such as the strong attraction to a permanent magnet. The origin of this strong magnetism is the presence of a spontaneous magnetization which is produced by a parallel alignment of spins. Instead of a parallel alignment of all the spins, there can be an anti-parallel alignment of unequal spins. This results in a spontaneous...

1 Comment on “ Ferromagnetic film on a superconducting substrate ”

A superconducting substrate is not able to shrink drastically domains in a ferromagnetic film, contrary to the prediction of Bulaevskii and Chudnovsky. This is shown on the basis of the exact solution for the stripe domain structure.

Comment on “ Ferromagnetic film on a superconducting substrate ”

A superconducting substrate is not able to shrink drastically domains in a ferromagnetic film, contrary to the prediction of Bulaevskii and Chudnovsky. This is shown on the basis of the exact solution for the stripe domain structure.