Single-spin measurement using single-electron transistors to probe two-electron systems

Kane, B. E., McAlpine, N. S., Dzurak, A. S., Clark, R. G., Milburn, G. J., Sun, H. B. and Wiseman, H. M. (2000) Single-spin measurement using single-electron transistors to probe two-electron systems. Physical Review B, 61 4: 2961-2972. doi:10.1103/PhysRevB.61.2961

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Author Kane, B. E.
McAlpine, N. S.
Dzurak, A. S.
Clark, R. G.
Milburn, G. J.
Sun, H. B.
Wiseman, H. M.
Title Single-spin measurement using single-electron transistors to probe two-electron systems
Journal name Physical Review B   Check publisher's open access policy
ISSN 0163-1829
Publication date 2000
Sub-type Article (original research)
DOI 10.1103/PhysRevB.61.2961
Open Access Status File (Publisher version)
Volume 61
Issue 4
Start page 2961
End page 2972
Total pages 12
Place of publication College Park, US
Publisher American Physical Soc
Collection year 2000
Language eng
Subject 240203 Condensed Matter Physics - Electronic and Magnetic Properties; Superconductivity
780102 Physical sciences
Abstract We present a method for measuring single spins embedded in a solid by probing two-electron systems with a single-electron transistor (SET). Restrictions imposed by the Pauli principle on allowed two-electron states mean that the spin state of such systems has a profound impact on the orbital states (positions) of the electrons, a parameter which SET's are extremely well suited to measure. We focus on a particular system capable of being fabricated with current technology: a Te double donor in Si adjacent to a Si/SiO2, interface and lying directly beneath the SET island electrode, and we outline a measurement strategy capable of resolving single-electron and nuclear spins in this system. We discuss the limitations of the measurement imposed by spin scattering arising from fluctuations emanating from the SET and from lattice phonons. We conclude that measurement of single spins, a necessary requirement for several proposed quantum computer architectures, is feasible in Si using this strategy.
Keyword Physics, Condensed Matter
Inversion-layer Electrons
Tellurium Donors
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Physical Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 94 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 13 Aug 2007, 11:36:20 EST