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

Buntkowsky, G., Ivanov, K. L., Zimmermann, H., & Vieth, H.-M. (2017). Coherent manipulation of non-thermal spin order in optical nuclear polarization experiments. The Journal of Chemical Physics, 146(11): 114501, pp. 1-13. doi:10.1063/1.4976990.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-C9B8-C Version Permalink: http://hdl.handle.net/21.11116/0000-0000-0467-8
Genre: Journal Article

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JChemPhys_146_2017_114501.pdf (Any fulltext), 721KB
 
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JChemPhys_146_2017_114501_Suppl.pdf (Supplementary material), 986KB
 
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 Creators:
Buntkowsky, Gerd, Author
Ivanov, Konstantin L., Author
Zimmermann, Herbert1, Author              
Vieth, Hans-Martin, Author
Affiliations:
1Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              

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 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.

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Language(s): eng - English
 Dates: 2016-11-212017-02-072017-03-17
 Publication Status: Published online
 Pages: 13
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1063/1.4976990
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Title: The Journal of Chemical Physics
  Other : J. Chem. Phys.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Institute of Physics
Pages: - Volume / Issue: 146 (11) Sequence Number: 114501 Start / End Page: 1 - 13 Identifier: ISSN: 0021-9606
CoNE: /journals/resource/954922836226