mriselMagnetic Resonance in SolidsMagnetic Resonance in Solids2072-5981Kazan Federal University10.26907/mrsej-21102mrisel-12Research ArticleСтатьиNMR inversion echo analog in cobalt and lithium ferrite under the combined action of radiofrequency and magnetic pulsesMamniashviliG.mgrigor@rocketmail.comGegechkoriT.GavasheliT.Andronikashvili Institute of Physics at Ivane Javakhishvili Tbilisi State UniversityGeorgiaIvane Javakhishvili Tbilisi State UniversityGeorgia20211112202323121102(9 pp.)Copyright © Mamniashvili G., Gegechkori T., Gavasheli T., 20232023Mamniashvili G., Gegechkori T., Gavasheli T.Mamniashvili G., Gegechkori T., Gavasheli T.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/12

A comparative study of the NMR inversion echo analog (magnetic echo) formation in the rotating coordinate system in multidomain samples of cobalt and lithium ferrite has been carried out under the action of a magnetic videopulse applied between two radio-frequency pulses exciting the two-pulse echo and in the case of the combined action of the magnetic videopulse and radio-frequency pulse, leading to the formation of a magnetic echo. The magnetic echo signal appearance is related to the domain wall displacement when the magnetic videopulse amplitude exceeds the domain wall pinning force. A correlation is shown between the results of determining the pinning force and domain walls mobility by these two methods, which allows one to use these alternative methods for measuring the domain wall pinning force and mobility in magnets.

NMRinversion echomagnetic videopulsedomain wallpinninglithium ferritecobaltReferencesGossard A.C., Portis A.M. Phys. Rev. Lett. 3, 164 (1954).Gossard A.C., Portis A.M. Phys. Rev. Lett. 3, 164 (1954).Turov E.A., Petrov M.P. Nuclear magnetic resonance in ferro- and antiferromagnets, (Halstead Press, New York, 1972) [in Russian: Nauka, Moscow(1969)].Turov E.A., Petrov M.P. Nuclear magnetic resonance in ferro- and antiferromagnets, (Halstead Press, New York, 1972) [in Russian: Nauka, Moscow(1969)].Wurmehl S., Kohlhepp J.T J. Phys. D. Appl. Phys. 41, 173002 (2008).Wurmehl S., Kohlhepp J.T J. Phys. D. Appl. Phys. 41, 173002 (2008).Shmyreva A.A., Matveev V.V., Yurkov G.Y. Int. J. Nanotechnol. 13, 126 (2016).Shmyreva A.A., Matveev V.V., Yurkov G.Y. Int. J. Nanotechnol. 13, 126 (2016).Mamniashvili G., Zviadadze M., Gegechkori T., Shermadini Z. Int. J. Trend Res. Dev. 3, 434 (2016).Mamniashvili G., Zviadadze M., Gegechkori T., Shermadini Z. Int. J. Trend Res. Dev. 3, 434 (2016).Galt J.K. Bell Syst. Tech. 33, 1023 (1954).Galt J.K. Bell Syst. Tech. 33, 1023 (1954).Searle C.W., Kunkel H.P., Kupca S., Maartense I. Phys. Rev. B 15, 3305 (1977).Searle C.W., Kunkel H.P., Kupca S., Maartense I. Phys. Rev. B 15, 3305 (1977).Ignatchenko V.A., Mal’tsev V.K., Reingardt A.E., Tsifrinovich V.I. JETP Lett. 37, 520 (1983).Ignatchenko V.A., Mal’tsev V.K., Reingardt A.E., Tsifrinovich V.I. JETP Lett. 37, 520 (1983).Mal’tsev V.K., Novoselov O.V., Tsifrinovich V.I. Sov. Phys. JETP 60, 366 (1984).Mal’tsev V.K., Novoselov O.V., Tsifrinovich V.I. Sov. Phys. JETP 60, 366 (1984).Chekmarev V.P., Mamniashvili G.I. Fiz. Met. Metallov. 51, 685 (1981).Chekmarev V.P., Mamniashvili G.I. Fiz. Met. Metallov. 51, 685 (1981).Akhalkatsi A.M., Mamniashvili G.I., Sanadze T.I. Appl. Magn. Reson. 5, 393 (1998).Akhalkatsi A.M., Mamniashvili G.I., Sanadze T.I. Appl. Magn. Reson. 5, 393 (1998).Akhalkatsi A.M., Zviadadze M.D., Mamniashvili G.I., Sozashvili N.M., Pogorely A.N., Kuzmak O.M. Phys. Met. Metallogr. 98, 252 (2004).Akhalkatsi A.M., Zviadadze M.D., Mamniashvili G.I., Sozashvili N.M., Pogorely A.N., Kuzmak O.M. Phys. Met. Metallogr. 98, 252 (2004).Chekmarev V.P., Kurkin M.I., Goloshchapov S.I. Sov. Phys. JETP 49, 851 (1979).Chekmarev V.P., Kurkin M.I., Goloshchapov S.I. Sov. Phys. JETP 49, 851 (1979).Rassvetalov L.A., Levitski A.B. Sov. Phys. Solid State Phys. 23, 3354 (1981).Rassvetalov L.A., Levitski A.B. Sov. Phys. Solid State Phys. 23, 3354 (1981).Kiliptari I.A., Tsifrinovich V.I. Phys. Rev. B57, 11554 (1998).Kiliptari I.A., Tsifrinovich V.I. Phys. Rev. B57, 11554 (1998).Doroshev V.D., Klochan V.A., Kovtun N.M., Seleznev V.N. Phys. Stat. Sol. A9, 679 (1972).Doroshev V.D., Klochan V.A., Kovtun N.M., Seleznev V.N. Phys. Stat. Sol. A9, 679 (1972).Sixtus K.J., Tonks L. Phys. Rev. 37, 930 (1931).Sixtus K.J., Tonks L. Phys. Rev. 37, 930 (1931).Atkinson D., Allwood D.A., Faulkner C.C., Xiong G., Cooke M.D., Cowburn R.P. IEEE Trans. Magn. 39, 2663 (2003).Atkinson D., Allwood D.A., Faulkner C.C., Xiong G., Cooke M.D., Cowburn R.P. IEEE Trans. Magn. 39, 2663 (2003).

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