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Slow Oscillations of the Perpendicular Magnetization of the Pt/Co/Ir/Co/Pt Spin Valve
- Source :
- JETP Letters. 108:137-141
- Publication Year :
- 2018
- Publisher :
- Pleiades Publishing Ltd, 2018.
-
Abstract
- The time dependences of the transfer of the magnetic moment between stable magnetic states of heterostructures with two Pt/Co/Ir/Co/Pt ferromagnetic layers with the perpendicular magnetization have been studied. Spontaneous oscillations of the macroscopic magnetization with a period of several hours are observed after switching the magnetic field to a new value. The phase portrait of the magnetic relaxation corresponds to damped oscillations. The macrospin oscillation may be due to the high nucleation rate of the reverse magnetization phase induced by the exchange and magnetic dipole interaction between the phase nucleation centers, which arise in different layers. The changes in the Zeeman energy of the system under magnetic oscillations are considered.
- Subjects :
- Materials science
Physics and Astronomy (miscellaneous)
Condensed matter physics
Magnetic moment
Spin valve
Nucleation
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Magnetic field
Magnetization
Ferromagnetism
0103 physical sciences
Zeeman energy
010306 general physics
0210 nano-technology
Magnetic dipole
Subjects
Details
- ISSN :
- 10906487 and 00213640
- Volume :
- 108
- Database :
- OpenAIRE
- Journal :
- JETP Letters
- Accession number :
- edsair.doi...........c454f2d05d09cec6a7fcba70f777ad85