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Long-lived heteronuclear spin-singlet states in liquids at a zero magnetic field
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Long-lived heteronuclear spin-singlet states in liquids at a zero magnetic field
Bibliographic description
| title: | Long-lived heteronuclear spin-singlet states in liquids at a zero magnetic field |
| author: | Emondts Meike, Ledbetter Micah P., Pustelny Szymon  , Theis Thomas, Patton Brian, Blanchard John W., Butler Mark C., Budker Dmitry, Pines Alexander |
| journal title: | Physical Review Letters |
| volume: | 112 |
| issue: | 7 |
| date of publication : | 2014 |
| article ID: | 077601 |
| ISSN: |
0031-9007 |
| eISSN: |
1079-7114 1092-0145 |
| DOI: | |
| language: | English |
| journal language: | English |
| abstract in English: | We report an observation of long-lived spin-singlet states in a C−H113 spin pair in a zero magnetic field. In C13-labeled formic acid, we observe spin-singlet lifetimes as long as 37 s, about a factor of 3 longer than the T1 lifetime of dipole polarization in the triplet state. In contrast to common high-field experiments, the observed coherence is a singlet-triplet coherence with a lifetime T2 longer than the T1 lifetime of dipole polarization in the triplet manifold. Moreover, we demonstrate that heteronuclear singlet states formed between a H1 and a C13 nucleus can exhibit longer lifetimes than the respective triplet states even in the presence of additional spins that couple to the spin pair of interest. Although long-lived homonuclear spin-singlet states have been extensively studied, this is the first experimental observation of analogous singlet states in heteronuclear spin pairs. |
| number of pulisher's sheets: | 0,5 |
| affiliation: | Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego |
| type: | journal article |
| subtype: | academic paper |
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Projekt „Repozytorium otwartego dostępu do dorobku naukowego i dydaktycznego UJ” współfinansowany w ramach poddziałania 2.3.1 „Cyfrowe udostępnianie zasobów nauki” Programu Operacyjnego Polska Cyfrowa z Europejskiego Funduszu Rozwoju Regionalnego i budżetu państwa na podstawie umowy o dofinansowanie nr POPC.02.03.01-00-0030/17-00
