NMR spin echo at application of an additional magnetic video-pulse is a convenient method to study the domain wall pinning in magnetic materials. Domain wall (DW) pinning is the critical amplitude of the magnetic video-pulse (MVP) below which the DW is fixed. For its assessment, two alternative NMR methods were chosen. In the first case, the pinning of DW was measured by the action of MVP on a two-pulse echo signal, and in the second one, the pinning was measured at the combined action of MVP and radiofrequency (RF) pulses on the nuclear spin system in DW during the process of formation a single-pulse echo, by means of generation of the so-called magnetic echo signal. DW pinning was studied by these two methods in magnets (lithium-zinc ferrite and cobalt micropowder samples).
|Konular||Radyo Frekansı Mühendisliği, Elektronik, Sensörler ve Dijital Donanım (Diğer)|
|Erken Görünüm Tarihi||28 Ağustos 2023|
|Yayımlanma Tarihi||1 Eylül 2023|
|Yayımlandığı Sayı||Yıl 2023Cilt: 22|