Chapter 3. Relaxation theory of long-lived spin order
Chapter 3. Relaxation theory of long-lived spin order
This chapter discusses several relaxation mechanisms that contribute to the relaxation decay rate of singlet and longitudinal order. In a systematic approach I use the Redfield theory to obtain analytical equations for these contributions. The mechanisms that occur in isolated two-spin-1/2 pairs are discussed first and apply to cases where the singlet pair is the only spin system in the molecule. When other spins are present, other mechanisms may arise and some of these are discussed below. Finally, coherent leakage mechanisms that contribute to singlet but not to longitudinal order relaxation decay rates are introduced and discussed.
64-91
Royal Society of Chemistry
Pileio, Giuseppe
13f78e66-0707-4438-b9c9-6dbd3eb7d4e8
15 April 2020
Pileio, Giuseppe
13f78e66-0707-4438-b9c9-6dbd3eb7d4e8
Pileio, Giuseppe
(2020)
Chapter 3. Relaxation theory of long-lived spin order.
In,
Pileio, Giuseppe
(ed.)
Long-lived Nuclear Spin Order: Theory and Applications.
(New Developments in NMR)
London.
Royal Society of Chemistry, .
(doi:10.1039/9781788019972-00064).
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Abstract
This chapter discusses several relaxation mechanisms that contribute to the relaxation decay rate of singlet and longitudinal order. In a systematic approach I use the Redfield theory to obtain analytical equations for these contributions. The mechanisms that occur in isolated two-spin-1/2 pairs are discussed first and apply to cases where the singlet pair is the only spin system in the molecule. When other spins are present, other mechanisms may arise and some of these are discussed below. Finally, coherent leakage mechanisms that contribute to singlet but not to longitudinal order relaxation decay rates are introduced and discussed.
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Published date: 15 April 2020
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Local EPrints ID: 442422
URI: http://eprints.soton.ac.uk/id/eprint/442422
ISSN: 2044-2548
PURE UUID: d1e8b8fb-e89a-4472-a623-7433385b23fa
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Date deposited: 15 Jul 2020 16:31
Last modified: 17 Mar 2024 03:03
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Giuseppe Pileio
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