Rabi oscillation and electron-spin-echo envelope modulation of the photoexcited triplet spin system in silicon

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

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We report on a pulsed electron paramagnetic resonance (EPR) study of the photoexcited triplet state (S=1) of oxygen-vacancy centers in silicon. Rabi oscillations between the triplet sublevels are observed using coherent manipulation with a resonant microwave pulse. The Hahn echo and stimulated echo decay profiles are superimposed with strong modulations known as electron-spin-echo envelope modulation (ESEEM). The ESEEM spectra reveal a weak but anisotropic hyperfine coupling between the triplet electron spin and a 29Si nuclear spin (I=1/2) residing at a nearby lattice site, that cannot be resolved in conventional field-swept EPR spectra.

Original languageEnglish
Article number115206
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number11
DOIs
Publication statusPublished - 2012 Sep 11

Fingerprint

Silicon
electron spin
echoes
envelopes
Modulation
modulation
oscillations
Paramagnetic resonance
Electrons
silicon
electron paramagnetic resonance
Oxygen vacancies
Microwaves
nuclear spin
atomic energy levels
manipulators
microwaves
decay
oxygen
profiles

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Rabi oscillation and electron-spin-echo envelope modulation of the photoexcited triplet spin system in silicon. / Akhtar, Waseem; Sekiguchi, Takeharu; Itahashi, Tatsumasa; Filidou, Vasileia; Morton, John J L; Vlasenko, Leonid; Itoh, Kohei M.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 86, No. 11, 115206, 11.09.2012.

Research output: Contribution to journalArticle

Akhtar, Waseem ; Sekiguchi, Takeharu ; Itahashi, Tatsumasa ; Filidou, Vasileia ; Morton, John J L ; Vlasenko, Leonid ; Itoh, Kohei M. / Rabi oscillation and electron-spin-echo envelope modulation of the photoexcited triplet spin system in silicon. In: Physical Review B - Condensed Matter and Materials Physics. 2012 ; Vol. 86, No. 11.
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