Spontaneous Vortex Phase Discovered?

Spontaneous Vortex Phase Discovered?

where $ B ­ = 3 $ A, $ M is magnetization and c is the superconducting order parameter. It was shown that a stable spiral phase, where superconductivity coexists with spiraling magnetization, or a spontaneous vortex phase, where magnetization is more or less uniform in the system but vortices are generated without an external magnetic field, may occur. Subsequently, the spiral phase was discove...

Spin and vortex dynamics and electromagnetic propagation in the spontaneous vortex phase

We study the spin and vortex dynamics in the spontaneous vortex phase of magnetic superconductors. Equations of motion are derived which incorporate the coupling between the superconducting and magnetic components, as well as coupling between spin and vortex motion. We show that coupling between the spin and vortex degrees of freedom leads to new dynamical phenomena in the spontaneous vortex ph...

ar X iv : c on d - m at / 9 60 72 14 v 1 3 0 Ju l 1 99 6 Spontaneous vortex phase discovered ?

It is argued that a spontaneous vortex phase may exist in the recently discovered compound ErN i 2 B 2 C at temperature below 2.3K. The consequences of this proposal are discussed. In particular the magnetic response of the system are studied both above and below 2.3K and further experiments proposed.

How I discovered phase contrast.

Spontaneous Imbalance and Hybrid Vortex–Gravity Structures

After reviewing the background, this article discusses the recently discovered examples of hybrid propagating structures consisting of vortex dipoles and comoving gravity waves undergoing wave capture. It is shown how these examples fall outside the scope of the Lighthill theory of spontaneous imbalance and, concomitantly, outside the scope of shallow-water dynamics. Besides the fact that going...