Figure 3 | Scientific Reports

Figure 3

From: Coherent coupling between Vanadyl Phthalocyanine spin ensemble and microwave photons: towards integration of molecular spin qubits into quantum circuits

Figure 3

Coupling regimes. (a) Coupling rate (Ω) and spin ensemble linewidth (γ) as a function of the temperature for the main line of all the 10% VOPc:TiOPc samples. Dashed lines are fits based on equation (2). (b) Cooperativity as a function of the temperature calculated from the curve fitting results reported in (a). Values from literature are added for comparison: the NV centers point is taken from10, while the Er3+ ions are taken from13 and14. (c) Effective number of spin extracted from Ω according to equation (2) as a function of the temperature for all the samples. For sample #1 and #4, dashed line indicates the values given by simulations (Supplementary Information).

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