Electromagnetic material and inductance for low temperatures
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorBernard Viala
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Abstract
An electromagnetic material for an inductance for operation at cryogenic temperatures including, in an electrically insulating matrix, metal nanoparticles with superparamagnetic behavior of size less than or equal to 30 nm and having a magnetic permeability greater than or equal to 1.5 for a frequency between 5 GHz and 50 GHz.
Claims16
An inductive element comprising an electromagnetic material for an inductance operating at cryogenic temperatures comprising, in an electrically insulating matrix, metal or iron carbides or iron nitrides nanoparticles with superparamagnetic behavior of size less than or equal to 30 nm and having a magnetic permeability greater than or equal to 1.5 for a frequency between 5 GHz and 50 GHz, wherein the inductance value is higher at a temperature less than or equal to 4 K than at room temperature.
An electromagnetic material for an inductance operating at cryogenic temperatures comprising, in an electrically insulating matrix, metal or iron carbides or iron nitrides nanoparticles with superparamagnetic behavior of size less than or equal to 30 nm and having a magnetic permeability greater than or equal to 1.5 for a frequency between 5 GHz and 50 GHz, wherein the matrix is a graphene oxide.
Dependencies are inferred from the claim text.