Probing the spin states of a single acceptor atom

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dc.contributor.authorVan Der Heijden, J.
dc.contributor.authorSalfi, J.
dc.contributor.authorMol, J.
dc.contributor.authorVerduijn, J.
dc.contributor.authorTettamanzi, G.
dc.contributor.authorHamilton, A.
dc.contributor.authorCollaert, N.
dc.contributor.authorRogge, S.
dc.date.issued2014
dc.description.abstractWe demonstrate a single-hole transistor using an individual acceptor dopant embedded in a silicon channel. Magneto-transport spectroscopy reveals that the ground state splits as a function of magnetic field into four states, which is unique for a single hole bound to an acceptor in a bulk semiconductor. The two lowest spin states are heavy (|m(j)| = 3/2) and light (|m(j)| = 1/2) hole-like, a two-level system that can be electrically driven and is characterized by a magnetic field dependent and long relaxation time, which are properties of interest for qubits. Although the bulklike spin splitting of a boron atom is preserved in our nanotransistor, the measured Landé g-factors, |g(hh)| = 0.81 ± 0.06 and |g(lh)| = 0.85 ± 0.21 for heavy and light holes respectively, are lower than the bulk value.
dc.description.statementofresponsibilityJoost van der Heijden, Joe Salfi, Jan A. Mol, Jan Verduijn, Giuseppe C. Tettamanzi, Alex R. Hamilton, Nadine Collaert, and Sven Rogge
dc.identifier.citationNano Letters, 2014; 14(3):1492-1496
dc.identifier.doi10.1021/nl4047015
dc.identifier.issn1530-6984
dc.identifier.issn1530-6992
dc.identifier.orcidTettamanzi, G. [0000-0002-3209-0632]
dc.identifier.urihttp://hdl.handle.net/2440/104343
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.relation.granthttp://purl.org/au-research/grants/arc/FT100100589
dc.relation.granthttp://purl.org/au-research/grants/arc/DP120101825
dc.relation.granthttp://purl.org/au-research/grants/arc/DE120100702
dc.rights© 2014 American Chemical Society
dc.source.urihttps://doi.org/10.1021/nl4047015
dc.subjectSingle acceptor; silicon MOSFET; single atom transistor; boron atom; magneto-transport spectroscopy; hole spin states
dc.titleProbing the spin states of a single acceptor atom
dc.typeJournal article
pubs.publication-statusPublished

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