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تسجيل مستخدم جديدThe spin resonance clock transition of the endohedral fullerene $^{15}mathrm{N@C}_{60}$
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R. T. Harding
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The endohedral fullerene $^{15}mathrm{N@C}_{60}$ has narrow electron paramagnetic resonance lines which have been proposed as the basis for a condensed-matter portable atomic clock. We measure the low-frequency spectrum of this molecule, identifying and characterizing a clock transition at which the frequency becomes insensitive to magnetic field. We infer a linewidth at the clock field of 100 kHz. Using experimental data, we are able to place a bound on the clocks projected frequency stability. We discuss ways to improve the frequency stability to be competitive with existing miniature clocks.
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