NMR inversion echo analog in cobalt and lithium ferrite under the combined action of radiofrequency and magnetic pulses
https://doi.org/10.26907/mrsej-21102
Abstract
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.
About the Authors
G. Mamniashvili
Andronikashvili Institute of Physics at Ivane Javakhishvili Tbilisi State University
Georgia
Georgia
T. Gegechkori
Andronikashvili Institute of Physics at Ivane Javakhishvili Tbilisi State University
Georgia
Georgia
T. Gavasheli
Ivane Javakhishvili Tbilisi State University
Georgia
Georgia
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Review
For citations:
Mamniashvili G., Gegechkori T., Gavasheli T. NMR inversion echo analog in cobalt and lithium ferrite under the combined action of radiofrequency and magnetic pulses. Magnetic Resonance in Solids. 2021;23(1):21102(9 pp.). https://doi.org/10.26907/mrsej-21102
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