Probing spin dynamics of photo-excited triplet state by microwave and radio-frequency pulses
نویسندگان
چکیده
Properly prepared pulse sequences of microwave and radio-frequency were employed to investigate the transient spin dynamics and the effect of polarization transfer from the polarized photo-excited triplet state of pentacene in pterphenyl crystals to the surrounding protons. The time evolution of the longitudinal magnetization of the triplet state was monitored in the electron-spin-echo (ESE) detected transient nutation (TN) experiments. Spin coherence effects in the cross polarization were observed in the time-resolved dynamic nuclear polarization experiments induced by nutation (microwave and radio-frequency) pulses.
منابع مشابه
Dynamic nuclear polarization in pulsed ENDOR experiments.
Properly prepared pulse sequences of microwave and radio frequency have been employed to investigate the effect of polarization transfer from the polarized photo excited triplet state of pentacene in p-terphenyl crystals to the surrounding protons in pulsed ENDOR experiments. The ENDOR signal, measured as the change of electron spin echo (ESE) amplitude, is affected by the mode of RF pulses. Wh...
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