Abstract
This chapter presents the first measurements performed on a single 123Sb donor in silicon. The start of the chapter discusses the tuning of the SET and subsequent detection of an 123Sb donor. An eight-fold splitting of the ESR spectrum is observed, matching the eight nuclear spin states of the 123Sb donor. Flip-flop transitions are also observed, where both the nuclear and electron spins flip simultaneously, and this is exploited for fast high-fidelity nuclear spin initialization. This chapter includes results from the following publication: S. Asaad\(^{*}\), V. Mourik\(^{*}\), B. Joecker, M. A. I. Johnson, A. D. Baczewski, H. R. Firgau, M. T. Mądzik, V. Schmitt, J. J. Pla, F. E. Hudson, K. M. Itoh, J. C. McCallum, A. S. Dzurak, A. Laucht, A. Morello. “Coherent electrical control of a single high-spin nucleus in silicon”. Nature 579.7798, pp. 205–209 (2020).
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