This proposal describes the arrangement based on the Einstein de-Haas experiment. An externally applied magnetic field magnetized the ferrite core by giving microwave power frequency to the coil around the ferrite core. Ferromagnetic resonance is achieved due to the effect of the interaction of spin precession magnetic moments due to Zeeman splitting on the macroscopic magnetization of the material. The core attains negative permeability at ferromagnetic resonance. Due to negative permeability, the ferrite counteracts the magnetizationdue to the applied DC electric field given to one end of the ferrite core. In certain scenarios, negative permeability can lead to the expulsion of the magnetic field resulting in B equal to zero inside the material. This induced phenomenon is somewhat analogous to the Meissner effect observed in superconductors. In the case of negative permeability, the negative magnetic response effectively shields the material's interior from external magnetic fields. The curl of the magnetic field is zero resulting in a net force equal to zero on the moving charge carriers.

Being a member of nanohub for 12 years,contributed various resources in nanohub.

Credits go to Prof.Supriyo Datta,My Guru.

Researchers should cite this work as follows:

• deepalakshmi chandrasekaran (2024), "Applications of Negative Permittivity and Negative Permeability Materials," https://nanohub.org/resources/39011.

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1. Divergence nature of magnetic field
2. Einstein de-Haas
3. HTS in Ferrite core
4. negative capacitance
5. negative permeability
6. Negative permittivity