mriselMagnetic Resonance in SolidsMagnetic Resonance in Solids2072-5981Kazan Federal University10.26907/mrsej-19107mrisel-43Research ArticleСтатьиContributions of different parts of dipole-dipole interactions to relaxation of multiple quantum NMR coherences in a single crystal of calcium fluorapatiteBochkinG. A.

142432 Chernogolovka

Fel'dmanE. B.

142432 Chernogolovka

LazarevI. D.

142432 Chernogolovka; 119991 Moscow

the.ilia.lazarev@gmail.comVasil'evS. G.

142432 Chernogolovka

Institute of Problems of Chemical PhysicsRussian FederationInstitute of Problems of Chemical Physics; Lomonosov Moscow State University, Faculty of Physics and ChemistryRussian Federation20190802201921119107 (10 pp.)Copyright © Bochkin G.A., Fel'dman E.B., Lazarev I.D., Vasil'ev S.G., 20242024Bochkin G.A., Fel'dman E.B., Lazarev I.D., Vasil'ev S.G.Bochkin G.A., Fel'dman E.B., Lazarev I.D., Vasil'ev S.G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.mrsej.ru/jour/article/view/43

Dipolar relaxation of multiple quantum (MQ) nuclear magnetic resonance (NMR) coherences on the evolution period of the MQ NMR experiment is investigated experimentally and theoretically in a single crystal of calcium fluorapatite. The theoretical approach is based on the zz model when the flip-flop part of the dipole-dipole interactions is not taken into account. The analytical results obtained in the zz model are compared with the numerical calculations for a chain consisting of 12 spins. The role of heteronuclear interactions of 19F and 31P nuclear spins in the dipolar relaxation of MQ NMR coherences is also investigated. A comparison of the experimental data and the theoretical predictions is discussed.

multiple quantum NMRmultiple quantum coherencemultiple quantum dynamicsdipolar relaxationfermionszz modelheteronuclear interactionsThis work is supported by the Russian Foundation for Basic Research (grant No. 16-03-00056) and the Program of the Presidium of RAS No. 5 \Electron Spin Resonance, Spin-Dependent Electron Effects and Spin Technologies".ReferencesBaum J., Munowitz M., Garroway A.N., Pines A. J. Chem. Phys. 83, 2015 (1985).Baum J., Munowitz M., Garroway A.N., Pines A. J. Chem. Phys. 83, 2015 (1985).Kaur G., Ajoy A., Cappellaro P. New J. Phys. 15, 093095 (2013).Kaur G., Ajoy A., Cappellaro P. New J. Phys. 15, 093095 (2013).Bochkin G.A., Fel'dman E.B., Vasil'ev S.G., Volkov V.I. Appl. Magn. Reson. 49, 25 (2018).Bochkin G.A., Fel'dman E.B., Vasil'ev S.G., Volkov V.I. Appl. Magn. Reson. 49, 25 (2018).Doronin S.I., Fel'dman E.B., Maximov I.I. J. Magn. Reson. 171, 47 (2004).Doronin S.I., Fel'dman E.B., Maximov I.I. J. Magn. Reson. 171, 47 (2004).Bochkin G.A., Fel'dman E.B., Vasil'ev S.G., Volkov V.I. Chem. Phys. Lett. 680, 56 (2017).Bochkin G.A., Fel'dman E.B., Vasil'ev S.G., Volkov V.I. Chem. Phys. Lett. 680, 56 (2017).Abragam A. The Principles of Nuclear Magnetism, Clarendon Press, Oxford (1961).Abragam A. The Principles of Nuclear Magnetism, Clarendon Press, Oxford (1961).Braun M., Jana C. Chem. Phys. Lett. 245, 19 (1995).Braun M., Jana C. Chem. Phys. Lett. 245, 19 (1995).Leroy N., Bres E. Eur. Cells Mater. 2, 36 (2001).Leroy N., Bres E. Eur. Cells Mater. 2, 36 (2001).Momma K., Izumi F. J. Appl. Crystallogr. 44, 1272 (2011).Momma K., Izumi F. J. Appl. Crystallogr. 44, 1272 (2011).Fel'dman E.B., Lacelle S. Chem. Phys. Lett. 253, 27 (1996).Fel'dman E.B., Lacelle S. Chem. Phys. Lett. 253, 27 (1996).Doronin S.I., Maksimov I.I., Fel'dman E.B. JETP 91, 597 (2000).Doronin S.I., Maksimov I.I., Fel'dman E.B. JETP 91, 597 (2000).Doronin S.I., Vasil'ev S.G., Samoilenko A.A., Fel'dman E.B., Shumm B.A. JETP Letters 101, 613 (2015).Doronin S.I., Vasil'ev S.G., Samoilenko A.A., Fel'dman E.B., Shumm B.A. JETP Letters 101, 613 (2015).Nielsen M.A., Chang I.L. Quantum Computation and Quantum Information, Cambrige University Press (2000).Nielsen M.A., Chang I.L. Quantum Computation and Quantum Information, Cambrige University Press (2000).Jordan P., Wigner E. Z. Phys. 47, 631 (1928).Jordan P., Wigner E. Z. Phys. 47, 631 (1928).

The authors declare that there are no conflicts of interest present.