Pulsed electron spin resonance of an organic microcrystal by dispersive readout

Keyser, Ailsa K.V.Imperial College of Science, Technology and Medicine,National Physical Laboratory (NPL) (författare)

We establish a testbed system for the development of high-sensitivity Electron Spin Resonance (ESR) techniques for small samples at cryogenic temperatures. Our system consists of a NbN thin-film planar superconducting microresonator designed to have a concentrated mode volume to couple to a small amount of paramagnetic material, and to be resilient to magnetic fields of up to 400mT. At 65mK we measure high-cooperativity coupling (C≈19) to an organic radical microcrystal containing 1012 spins in a pico-litre volume. We detect the spin–lattice decoherence rate via the dispersive frequency shift of the resonator. Techniques such as these could be suitable for applications in quantum information as well as for pulsed ESR interrogation of very few spins to provide insights into the surface chemistry of, for example, the material defects in superconducting quantum processors.

Burnett, J.National Physical Laboratory (NPL) (författare)
Kubatkin, Sergey,1959Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)kubatkin (författare)
Danilov, Andrey,1961Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)danilov (författare)
Oxborrow, MarkImperial College of Science, Technology and Medicine (författare)
de Graaf, Sebastian Erik,1986National Physical Laboratory (NPL)(Swepub:cth)degraaf (författare)
Lindström, Tobias,1976National Physical Laboratory (NPL)(Swepub:cth)tobiasl (författare)
Imperial College of Science, Technology and MedicineNational Physical Laboratory (NPL) (creator_code:org_t)

Av författaren/redakt...: Keyser, Ailsa K. ...; Burnett, J.; Kubatkin, Sergey ...; Danilov, Andrey, ...; Oxborrow, Mark; de Graaf, Sebast ...; visa fler...; Lindström, Tobia ...; visa färre...

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