Spin dependent recombination based magnetic resonance spectroscopy of bismuth donor spins in silicon at low magnetic fields

P. A. Mortemousque; T. Sekiguchi; C. Culan; M. P. Vlasenko; R. G. Elliman; L. S. Vlasenko; K. M. Itoh

doi:10.1063/1.4747723

Spin dependent recombination based magnetic resonance spectroscopy of bismuth donor spins in silicon at low magnetic fields

P. A. Mortemousque, T. Sekiguchi, C. Culan, M. P. Vlasenko, R. G. Elliman, L. S. Vlasenko, K. M. Itoh

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Abstract

Low-field (6-110 mT) magnetic resonance of bismuth (Bi) donors in silicon has been observed by monitoring the change in photoconductivity induced by spin dependent recombination. The spectra at various resonance frequencies show signal intensity distributions drastically different from that observed in conventional electron paramagnetic resonance, attributed to different recombination rates for the forty possible combinations of spin states of a pair of a Bi donor and a paramagnetic recombination center. An excellent tunability of Bi excitation energy for the future coupling with superconducting flux qubits at low fields has been demonstrated.

Original language	English
Article number	082409
Journal	Applied Physics Letters
Volume	101
Issue number	8
DOIs	https://doi.org/10.1063/1.4747723
Publication status	Published - 2012 Aug 20

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Spin dependent recombination based magnetic resonance spectroscopy of bismuth donor spins in silicon at low magnetic fields",

abstract = "Low-field (6-110 mT) magnetic resonance of bismuth (Bi) donors in silicon has been observed by monitoring the change in photoconductivity induced by spin dependent recombination. The spectra at various resonance frequencies show signal intensity distributions drastically different from that observed in conventional electron paramagnetic resonance, attributed to different recombination rates for the forty possible combinations of spin states of a pair of a Bi donor and a paramagnetic recombination center. An excellent tunability of Bi excitation energy for the future coupling with superconducting flux qubits at low fields has been demonstrated.",

author = "Mortemousque, {P. A.} and T. Sekiguchi and C. Culan and Vlasenko, {M. P.} and Elliman, {R. G.} and Vlasenko, {L. S.} and Itoh, {K. M.}",

note = "Funding Information: This work was supported in part by Grant-in-Aid for Scientific Research and Project for Developing Innovation Systems by MEXT, FIRST, and JST-EPSRC/SIC (EP/H025952/1).",

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doi = "10.1063/1.4747723",

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T1 - Spin dependent recombination based magnetic resonance spectroscopy of bismuth donor spins in silicon at low magnetic fields

AU - Mortemousque, P. A.

AU - Sekiguchi, T.

AU - Culan, C.

AU - Vlasenko, M. P.

AU - Elliman, R. G.

AU - Vlasenko, L. S.

AU - Itoh, K. M.

N1 - Funding Information: This work was supported in part by Grant-in-Aid for Scientific Research and Project for Developing Innovation Systems by MEXT, FIRST, and JST-EPSRC/SIC (EP/H025952/1).

PY - 2012/8/20

Y1 - 2012/8/20

N2 - Low-field (6-110 mT) magnetic resonance of bismuth (Bi) donors in silicon has been observed by monitoring the change in photoconductivity induced by spin dependent recombination. The spectra at various resonance frequencies show signal intensity distributions drastically different from that observed in conventional electron paramagnetic resonance, attributed to different recombination rates for the forty possible combinations of spin states of a pair of a Bi donor and a paramagnetic recombination center. An excellent tunability of Bi excitation energy for the future coupling with superconducting flux qubits at low fields has been demonstrated.

AB - Low-field (6-110 mT) magnetic resonance of bismuth (Bi) donors in silicon has been observed by monitoring the change in photoconductivity induced by spin dependent recombination. The spectra at various resonance frequencies show signal intensity distributions drastically different from that observed in conventional electron paramagnetic resonance, attributed to different recombination rates for the forty possible combinations of spin states of a pair of a Bi donor and a paramagnetic recombination center. An excellent tunability of Bi excitation energy for the future coupling with superconducting flux qubits at low fields has been demonstrated.

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Spin dependent recombination based magnetic resonance spectroscopy of bismuth donor spins in silicon at low magnetic fields

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