Results 181 to 190 of about 6,215 (212)
Journal of the American Chemical Society, 1980 Heinz D. Roth, M. L. Schilling
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Angewandte Chemie International Edition, 2019
AbstractNuclear spin singlet states are silent states in nuclear magnetic resonance (NMR). However, they can be probed indirectly and offer great potential for the development of contrast agents for magnetic resonance imaging (MRI). Introduced here are two novel concepts: Firstly, the bimodal NMR/fluorescence properties of 13C2‐tetraphenylethylene.
Yang S. +4 more
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AbstractNuclear spin singlet states are silent states in nuclear magnetic resonance (NMR). However, they can be probed indirectly and offer great potential for the development of contrast agents for magnetic resonance imaging (MRI). Introduced here are two novel concepts: Firstly, the bimodal NMR/fluorescence properties of 13C2‐tetraphenylethylene.
Yang S. +4 more
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The Journal of Chemical Physics, 2009
In a previous paper [M. Carravetta and M. H. Levitt, J. Chem. Phys. 122, 214505 (2005)], we presented the theory of long-lived nuclear spin singlet states in low magnetic field. In this paper, we consider the spin locking of long-lived singlet states in high magnetic field by the application of resonant radio frequency irradiation.
Pileio, Giuseppe, Levitt, Malcolm
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In a previous paper [M. Carravetta and M. H. Levitt, J. Chem. Phys. 122, 214505 (2005)], we presented the theory of long-lived nuclear spin singlet states in low magnetic field. In this paper, we consider the spin locking of long-lived singlet states in high magnetic field by the application of resonant radio frequency irradiation.
Pileio, Giuseppe, Levitt, Malcolm
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Nuclear spin singlet states as a contrast mechanism for NMR spectroscopy
NMR in Biomedicine, 2013Nuclear magnetic resonance (NMR) spectra of complex chemical mixtures often contain unresolved or hidden spectral components, especially when strong background signals overlap weaker peaks. In this article we demonstrate a quantum filter utilizing nuclear spin singlet states, which allows undesired NMR spectral background to be removed and target ...
Devience, Stephen +2 more
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The Journal of Chemical Physics, 2005
We have recently demonstrated the existence of exceptionally long-lived nuclear spin states in solution-state nuclear magnetic resonance. The lifetime of nuclear spin singlet states in systems containing coupled pairs of spins-1∕2 may exceed the conventional relaxation time constant T1 by more than an order of magnitude.
Carravetta, Marina, Levitt, Malcolm H.
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We have recently demonstrated the existence of exceptionally long-lived nuclear spin states in solution-state nuclear magnetic resonance. The lifetime of nuclear spin singlet states in systems containing coupled pairs of spins-1∕2 may exceed the conventional relaxation time constant T1 by more than an order of magnitude.
Carravetta, Marina, Levitt, Malcolm H.
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2017
Isolated pairs of spin-1/2 nuclei can be prepared in a singlet state configuration that is immune to intrapair dipole–dipole relaxation, often the main source for the longitudinal magnetization decay constant T1. Because of this property singlet states can hold polarization for much longer than T1.
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Isolated pairs of spin-1/2 nuclei can be prepared in a singlet state configuration that is immune to intrapair dipole–dipole relaxation, often the main source for the longitudinal magnetization decay constant T1. Because of this property singlet states can hold polarization for much longer than T1.
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Quantum guidelines for solid-state spin defects
Nature Reviews Materials, 2021Gary Wolfowicz +2 more
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Oxide spin-orbitronics: spin–charge interconversion and topological spin textures
Nature Reviews Materials, 2021Felix Trier, Paul Noël, Joo-Von Kim
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