Electron paramagnetic resonance and dynamic nuclear polarization via the photoexcited triplet states of radiation defects in natural and 29Si isotope enriched silicon

L. S. Vlasenko; M. P. Vlasenko; D. S. Poloskin; R. Laiho; H. Hayashi; T. Itahashi; A. Sagara; K. M. Itoh

doi:10.1002/pssc.200672809

Electron paramagnetic resonance and dynamic nuclear polarization via the photoexcited triplet states of radiation defects in natural and ²⁹Si isotope enriched silicon

L. S. Vlasenko, M. P. Vlasenko, D. S. Poloskin, R. Laiho, H. Hayashi, T. Itahashi, A. Sagara, K. M. Itoh

Department of Applied Physics and Physico-Informatics

Research output: Contribution to journal › Conference article

8 Citations (Scopus)

Abstract

Electron paramagnetic resonance (EPR) of the triplet centers and dynamic ²⁹Si nuclear polarization was studied in irradiated naturally abounded (4.7%) and ²⁹Si isotope enriched (99.3%) silicon crystals. Saturation of the EPR lines of the photoexcited triplet centers with nonequilibrium spin polarization between m^s = +1, 0, and -1 sates leads to the nuclear polarization ≈7000 times higher than equilibrium value. It was shown that the observed dynamic nuclear polarization is a result of the "solid-effect".

Original language	English
Pages (from-to)	4376-4379
Number of pages	4
Journal	Physica Status Solidi (C) Current Topics in Solid State Physics
Volume	3
Issue number	12
DOIs	https://doi.org/10.1002/pssc.200672809
Publication status	Published - 2006 Dec 1
Event	4th International Conference on Physics and Applications of Spin-related Phenomena in Semiconductors, PASPS-IV - Sendai, Japan Duration: 2006 Aug 15 → 2006 Aug 18

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ASJC Scopus subject areas

Condensed Matter Physics

Cite this

Vlasenko, L. S., Vlasenko, M. P., Poloskin, D. S., Laiho, R., Hayashi, H., Itahashi, T., Sagara, A., & Itoh, K. M. (2006). Electron paramagnetic resonance and dynamic nuclear polarization via the photoexcited triplet states of radiation defects in natural and ²⁹Si isotope enriched silicon. Physica Status Solidi (C) Current Topics in Solid State Physics, 3(12), 4376-4379. https://doi.org/10.1002/pssc.200672809

Electron paramagnetic resonance and dynamic nuclear polarization via the photoexcited triplet states of radiation defects in natural and ²⁹Si isotope enriched silicon. / Vlasenko, L. S.; Vlasenko, M. P.; Poloskin, D. S.; Laiho, R.; Hayashi, H.; Itahashi, T.; Sagara, A.; Itoh, K. M.

In: Physica Status Solidi (C) Current Topics in Solid State Physics, Vol. 3, No. 12, 01.12.2006, p. 4376-4379.

Research output: Contribution to journal › Conference article

Vlasenko, LS, Vlasenko, MP, Poloskin, DS, Laiho, R, Hayashi, H, Itahashi, T, Sagara, A & Itoh, KM 2006, 'Electron paramagnetic resonance and dynamic nuclear polarization via the photoexcited triplet states of radiation defects in natural and ²⁹Si isotope enriched silicon', Physica Status Solidi (C) Current Topics in Solid State Physics, vol. 3, no. 12, pp. 4376-4379. https://doi.org/10.1002/pssc.200672809

Vlasenko LS, Vlasenko MP, Poloskin DS, Laiho R, Hayashi H, Itahashi T et al. Electron paramagnetic resonance and dynamic nuclear polarization via the photoexcited triplet states of radiation defects in natural and ²⁹Si isotope enriched silicon. Physica Status Solidi (C) Current Topics in Solid State Physics. 2006 Dec 1;3(12):4376-4379. https://doi.org/10.1002/pssc.200672809

Vlasenko, L. S. ; Vlasenko, M. P. ; Poloskin, D. S. ; Laiho, R. ; Hayashi, H. ; Itahashi, T. ; Sagara, A. ; Itoh, K. M. / Electron paramagnetic resonance and dynamic nuclear polarization via the photoexcited triplet states of radiation defects in natural and ²⁹Si isotope enriched silicon. In: Physica Status Solidi (C) Current Topics in Solid State Physics. 2006 ; Vol. 3, No. 12. pp. 4376-4379.

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title = "Electron paramagnetic resonance and dynamic nuclear polarization via the photoexcited triplet states of radiation defects in natural and 29Si isotope enriched silicon",

abstract = "Electron paramagnetic resonance (EPR) of the triplet centers and dynamic 29Si nuclear polarization was studied in irradiated naturally abounded (4.7%) and 29Si isotope enriched (99.3%) silicon crystals. Saturation of the EPR lines of the photoexcited triplet centers with nonequilibrium spin polarization between ms = +1, 0, and -1 sates leads to the nuclear polarization ≈7000 times higher than equilibrium value. It was shown that the observed dynamic nuclear polarization is a result of the {"}solid-effect{"}.",

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T1 - Electron paramagnetic resonance and dynamic nuclear polarization via the photoexcited triplet states of radiation defects in natural and 29Si isotope enriched silicon

AU - Vlasenko, L. S.

AU - Vlasenko, M. P.

AU - Poloskin, D. S.

AU - Laiho, R.

AU - Hayashi, H.

AU - Itahashi, T.

AU - Sagara, A.

AU - Itoh, K. M.

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N2 - Electron paramagnetic resonance (EPR) of the triplet centers and dynamic 29Si nuclear polarization was studied in irradiated naturally abounded (4.7%) and 29Si isotope enriched (99.3%) silicon crystals. Saturation of the EPR lines of the photoexcited triplet centers with nonequilibrium spin polarization between ms = +1, 0, and -1 sates leads to the nuclear polarization ≈7000 times higher than equilibrium value. It was shown that the observed dynamic nuclear polarization is a result of the "solid-effect".

AB - Electron paramagnetic resonance (EPR) of the triplet centers and dynamic 29Si nuclear polarization was studied in irradiated naturally abounded (4.7%) and 29Si isotope enriched (99.3%) silicon crystals. Saturation of the EPR lines of the photoexcited triplet centers with nonequilibrium spin polarization between ms = +1, 0, and -1 sates leads to the nuclear polarization ≈7000 times higher than equilibrium value. It was shown that the observed dynamic nuclear polarization is a result of the "solid-effect".

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10.1002/pssc.200672809