Assessment of heteronuclear long-lived states at ultralow magnetic fields

Assessment of heteronuclear long-lived states at ultralow magnetic fields Full article

Journal

Physical Chemistry Chemical Physics
ISSN: 1463-9076

Output data

Year: 2019, Volume: 21, Number: 33, Pages: 18188-18194 Pages count : 7 DOI: 10.1039/c9cp03719e

Authors

Zhukov Ivan V. ^1,2 , Kiryutin Alexey S. ^1,2 , Yurkovskaya Alexandra V. ^1,2 , Ivanov Konstantin L. ^1,2

Affiliations

1	International Tomography Center SB RAS, Institutskaya str. 3a, Novosibirsk, Russia
2	Novosibirsk State University, Pirogova str. 1, Novosibirsk, Russia

A study of long-lived spin states in hetero-nuclear spin systems is presented. Since long-lived states are efficiently sustained only when the spins are “strongly coupled”, this study necessitates going to “ultralow” magnetic fields, which are much lower than the Earth's field. To do so, we utilize a fast field-cycling device, which rapidly shuttles the sample between an NMR (Nuclear Magnetic Resonance) magnet and a magnetic shield with a very low field inside. While the spin evolution is taking place at an ultralow field, detection is performed at the high field of an NMR spectrometer. We report hetero-nuclear long-lived order in two spin and four-spin systems, given by the CH and CH3 groups of methyl propiolate, and present a detailed analysis of the spectral manifestation of such long-lived states.

Zhukov I.V. , Kiryutin A.S. , Yurkovskaya A.V. , Ivanov K.L.
Assessment of heteronuclear long-lived states at ultralow magnetic fields
Physical Chemistry Chemical Physics. 2019. V.21. N33. P.18188-18194. DOI: 10.1039/c9cp03719e

Submitted:	Jul 2, 2019
Accepted:	Jul 29, 2019
Published online:	Jul 29, 2019

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