Axisymmetric dynamo action produced by differential rotation, with anisotropic electrical conductivity and anisotropic magnetic permeability
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Plasma Physics"
DOI: 10.1017/s0022377820001634
Abstract: The effect on dynamo action of an anisotropic electrical conductivity conjugated to an anisotropic magnetic permeability is considered. Not only is the dynamo fully axisymmetric, but it requires only a simple differential rotation, which twice… read more here.
Keywords: electrical conductivity; magnetic permeability; anisotropic electrical; dynamo action ... See more keywords
Energetically expensive dynamo action in Earth’s basal magma ocean
Sign Up to like & getrecommendations! Published in 2025 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2507575122
Abstract: Significance It is argued that the early geomagnetic field must have been maintained in a relatively thin molten silicate ocean situated just above Earth’s liquid metal core. Our detailed 3D numerical models show that such… read more here.
Keywords: earth; basal magma; dynamo action; magma ocean ... See more keywords