0.15 , the resonance field increases from the resonance field of the infinite cylinder and approaches the level of a film magnetized along the plane. This behavior only qualitatively agrees with the prediction made using the calculated demagnetizing factor in the ferromagnetic tube. For β > --> 0.15 and the applied transverse field, a number of resonance peaks were observed for the microtube with the outer diameter of 500 nm, but for nanotubes with the diameters of 50 and 100 nm, a single peak was observed. [ABSTRACT FROM AUTHOR]
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| Autor: |
Fel'k, V. A., Komogortsev, S. V. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 5/14/2021, Vol. 129 Issue 18, p1-7, 7p |
| Abstrakt: |
Ferromagnetic resonance fields in a microtube with various ratios of the inner and outer diameter of the tube β were studied using micromagnetic simulation. For β < 0.15 , the resonance field agrees with the prediction of the Kittel equation for an infinite ferromagnetic cylinder for both parallel and perpendicular orientation of the applied field to its axis. For β > --> 0.15 , the resonance field increases from the resonance field of the infinite cylinder and approaches the level of a film magnetized along the plane. This behavior only qualitatively agrees with the prediction made using the calculated demagnetizing factor in the ferromagnetic tube. For β > --> 0.15 and the applied transverse field, a number of resonance peaks were observed for the microtube with the outer diameter of 500 nm, but for nanotubes with the diameters of 50 and 100 nm, a single peak was observed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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