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Ciccarelli Group - Spin Physics and Devices


Strong coupling allows for the coherent transfer of the information between a condensed matter system and an electromagnetic mode. This coupling is easier to achieve for electric dipoles over magnetic dipoles (spins), due to the stronger electric interaction over the magnetic one. In this project, in collaboration with the Hitachi Cambridge Laboratory, we use a superconducting microwave resonator with the aim to maximise the coupling between magnons (the quanta of magnetic excitations) and microwave photons.




Avoided crossing between the ferromagnetic mode and the electromagnetic mode of the superconducting resonator shows strong coupling between the two systems.

Phys. Rev. B 99, 140414(R) (2019)