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  • 1705.04817

    Rights statement: © 2017 American Physical Society

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The spin resonance clock transition of the endohedral fullerene 15N@C60

Research output: Contribution to journalJournal article

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  • R. T. Harding
  • S. Zhou
  • J. Zhou
  • T. Lindvall
  • W. K. Myers
  • A Ardavan
  • G A D Briggs
  • K Porfyrakis
  • E A Laird
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Article number140801
<mark>Journal publication date</mark>4/10/2017
<mark>Journal</mark>Physical review letters
Issue number14
Volume119
Number of pages6
Publication statusPublished
Original languageEnglish

Abstract

The endohedral fullerene 15N@C60 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 clock’s projected frequency stability. We discuss ways to improve the frequency stability to be competitive with existing miniature clocks.

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© 2017 American Physical Society