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Coherent manipulation of non-thermal spin order in optical nuclear polarization experiments. / Buntkowsky, Gerd; Ivanov, Konstantin L.; Zimmermann, Herbert et al.

In: Journal of Chemical Physics, Vol. 146, No. 11, 114501, 21.03.2017.

Research output: Contribution to journal › Article › peer-review

Harvard

Buntkowsky, G, Ivanov, KL, Zimmermann, H & Vieth, HM 2017, 'Coherent manipulation of non-thermal spin order in optical nuclear polarization experiments', Journal of Chemical Physics, vol. 146, no. 11, 114501. https://doi.org/10.1063/1.4976990

APA

Buntkowsky, G., Ivanov, K. L., Zimmermann, H., & Vieth, H. M. (2017). Coherent manipulation of non-thermal spin order in optical nuclear polarization experiments. Journal of Chemical Physics, 146(11), [114501]. https://doi.org/10.1063/1.4976990

Vancouver

Buntkowsky G, Ivanov KL, Zimmermann H, Vieth HM. Coherent manipulation of non-thermal spin order in optical nuclear polarization experiments. Journal of Chemical Physics. 2017 Mar 21;146(11):114501. doi: 10.1063/1.4976990

Author

Buntkowsky, Gerd ; Ivanov, Konstantin L. ; Zimmermann, Herbert et al. / Coherent manipulation of non-thermal spin order in optical nuclear polarization experiments. In: Journal of Chemical Physics. 2017 ; Vol. 146, No. 11.

BibTeX

@article{ea0d772ed53242098a1e7676d1f908bb,
title = "Coherent manipulation of non-thermal spin order in optical nuclear polarization experiments",
abstract = "Time resolved measurements of Optical Nuclear Polarization (ONP) have been performed on hyperpolarized triplet states in molecular crystals created by light excitation. Transfer of the initial electron polarization to nuclear spins has been studied in the presence of radiofrequency excitation; the experiments have been performed with different pulse sequences using different doped molecular systems. The experimental results clearly demonstrate the dominant role of coherent mechanisms of spin order transfer, which manifest themselves in well pronounced oscillations. These oscillations are of two types, precessions and nutations, having characteristic frequencies, which are the same for the different molecular systems and the pulse sequences applied. Hence, precessions and nutations constitute a general feature of polarization transfer in ONP experiments. In general, coherent manipulation of spin order transfer creates a powerful resource for improving the performance of the ONP method, which paves the way to strong signal enhancement in nuclear magnetic resonance.",
keywords = "EXCITED TRIPLET-STATE, MOLECULAR MIXED-CRYSTALS, PICOSECOND PHOTON-ECHO, CROSS-POLARIZATION, SOLID-STATE, SATURATION SPECTROSCOPY, DYNAMIC POLARIZATION, NAPHTHALENE CRYSTALS, VIBRONIC RELAXATION, ANTHRACENE-CRYSTALS",
author = "Gerd Buntkowsky and Ivanov, {Konstantin L.} and Herbert Zimmermann and Vieth, {Hans Martin}",
note = "Publisher Copyright: {\textcopyright} 2017 Author(s).",
year = "2017",
month = mar,
day = "21",
doi = "10.1063/1.4976990",
language = "English",
volume = "146",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Institute of Physics",
number = "11",

}

RIS

TY - JOUR

T1 - Coherent manipulation of non-thermal spin order in optical nuclear polarization experiments

AU - Buntkowsky, Gerd

AU - Ivanov, Konstantin L.

AU - Zimmermann, Herbert

AU - Vieth, Hans Martin

N1 - Publisher Copyright: © 2017 Author(s).

PY - 2017/3/21

Y1 - 2017/3/21

N2 - Time resolved measurements of Optical Nuclear Polarization (ONP) have been performed on hyperpolarized triplet states in molecular crystals created by light excitation. Transfer of the initial electron polarization to nuclear spins has been studied in the presence of radiofrequency excitation; the experiments have been performed with different pulse sequences using different doped molecular systems. The experimental results clearly demonstrate the dominant role of coherent mechanisms of spin order transfer, which manifest themselves in well pronounced oscillations. These oscillations are of two types, precessions and nutations, having characteristic frequencies, which are the same for the different molecular systems and the pulse sequences applied. Hence, precessions and nutations constitute a general feature of polarization transfer in ONP experiments. In general, coherent manipulation of spin order transfer creates a powerful resource for improving the performance of the ONP method, which paves the way to strong signal enhancement in nuclear magnetic resonance.

AB - Time resolved measurements of Optical Nuclear Polarization (ONP) have been performed on hyperpolarized triplet states in molecular crystals created by light excitation. Transfer of the initial electron polarization to nuclear spins has been studied in the presence of radiofrequency excitation; the experiments have been performed with different pulse sequences using different doped molecular systems. The experimental results clearly demonstrate the dominant role of coherent mechanisms of spin order transfer, which manifest themselves in well pronounced oscillations. These oscillations are of two types, precessions and nutations, having characteristic frequencies, which are the same for the different molecular systems and the pulse sequences applied. Hence, precessions and nutations constitute a general feature of polarization transfer in ONP experiments. In general, coherent manipulation of spin order transfer creates a powerful resource for improving the performance of the ONP method, which paves the way to strong signal enhancement in nuclear magnetic resonance.

KW - EXCITED TRIPLET-STATE

KW - MOLECULAR MIXED-CRYSTALS

KW - PICOSECOND PHOTON-ECHO

KW - CROSS-POLARIZATION

KW - SOLID-STATE

KW - SATURATION SPECTROSCOPY

KW - DYNAMIC POLARIZATION

KW - NAPHTHALENE CRYSTALS

KW - VIBRONIC RELAXATION

KW - ANTHRACENE-CRYSTALS

UR - http://www.scopus.com/inward/record.url?scp=85016152997&partnerID=8YFLogxK

U2 - 10.1063/1.4976990

DO - 10.1063/1.4976990

M3 - Article

AN - SCOPUS:85016152997

VL - 146

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 11

M1 - 114501

ER -

ID: 10266362