Coherent storage of photoexcited triplet states using Si29 nuclear spins in silicon

Waseem Akhtar, Vasileia Filidou, Takeharu Sekiguchi, Erika Kawakami, Tatsumasa Itahashi, Leonid Vlasenko, John J.L. Morton, Kohei M. Itoh

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Pulsed electron paramagnetic resonance spectroscopy of the photoexcited, metastable triplet state of the oxygen-vacancy center in silicon reveals that the lifetime of the m s=±1 sublevels differs significantly from that of the m s=0 state. We exploit this significant difference in decay rates to the ground singlet state to achieve nearly ∼100% electron-spin polarization within the triplet. We further demonstrate the transfer of a coherent state of the triplet electron spin to, and from, a hyperfine-coupled, nearest-neighbor Si29 nuclear spin. We measure the coherence time of the Si29 nuclear spin employed in this operation and find it to be unaffected by the presence of the triplet electron spin and equal to the bulk value measured by nuclear magnetic resonance.

本文言語English
論文番号097601
ジャーナルPhysical review letters
108
9
DOI
出版ステータスPublished - 2012 2 27

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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